List of mammals of Argentina
Encyclopedia
This is a list of the mammal species recorded in Argentina. As of February 2011, the list contains 398 mammal species from Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

, of which 1 is extinct, 6 are critically endangered, 14 are endangered, 19 are vulnerable, and 31 are near-threatened.

The following tags are used to highlight each species' conservation status as assessed by the IUCN
World Conservation Union
The International Union for Conservation of Nature and Natural Resources is an international organization dedicated to finding "pragmatic solutions to our most pressing environment and development challenges." The organization publishes the IUCN Red List, compiling information from a network of...

:
EX Extinct
Extinction
In biology and ecology, extinction is the end of an organism or of a group of organisms , normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point...

No reasonable doubt that the last individual has died.
EW Extinct in the Wild
Extinct in the Wild
Extinct in the Wild is a conservation status assigned to species or lower taxa, the only known living members of which are being kept in captivity or as a naturalized population outside its historic range.-Examples:...

Known only to survive in captivity or as a naturalized population well outside its historic range.
CR Critically Endangered
Critically Endangered
Critically Endangered is the highest risk category assigned by the IUCN Red List for wild species. Critically Endangered means that a species' numbers have decreased, or will decrease, by 80% within three generations....

The species is facing an extremely high risk of extinction in the wild.
EN Endangered
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

The species is facing a very high risk of extinction in the wild.
VU Vulnerable
Vulnerable species
On 30 January 2010, the IUCN Red List of Threatened Species identified 9694 Vulnerable species, subspecies and varieties, stocks and sub-populations.-References:...

The species is facing a high risk of extinction in the wild.
NT Near Threatened
Near Threatened
Near Threatened is a conservation status assigned to species or lower taxa that may be considered threatened with extinction in the near future, although it does not currently qualify for the threatened status...

The species does not currently qualify as being at high risk of extinction but it is likely to do so in the future.
LC Least Concern
Least Concern
Least Concern is an IUCN category assigned to extant taxon or lower taxa which have been evaluated but do not qualify for any other category. As such they do not qualify as threatened, Near Threatened, or Conservation Dependent...

The species is not currently at risk of extinction in the wild.
DD Data Deficient
Data Deficient
Data Deficient is a category applied by the IUCN, other agencies, and individuals to a species when the available information is not sufficient for a proper assessment of conservation status to be made...

There is inadequate information to assess the risk of extinction for this species.

Order: Cingulata (armadillos)

----
The armadillos are small mammals with a bony armored shell. They are native to the Americas. There are around 20 extant species.
  • Family: Dasypodidae (armadillos)
    • Subfamily: Dasypodinae
      • Genus: Dasypus
        Dasypus
        Dasypus is a genus of armadillo in the Dasypodidae family. It is the only genus in the subfamily Dasypodinae and contains the following species:*Nine-banded Armadillo, Dasypus novemcinctus*Seven-banded Armadillo, Dasypus septemcinctus...

        • Southern Long-nosed Armadillo
          Southern Long-nosed Armadillo
          The Southern Long-nosed Armadillo, Dasypus hybridus, is an armadillo species from South America. It is found in Argentina, Brazil, Paraguay and Uruguay.-References:*...

           Dasypus hybridus NT
        • Nine-banded Armadillo
          Nine-banded Armadillo
          The nine-banded armadillo , or the nine-banded, long-nosed armadillo, is a species of armadillo found in North, Central, and South America, making it the most widespread of the armadillos...

           Dasypus novemcinctus LC**** Seven-banded Armadillo
          Seven-banded Armadillo
          Seven-banded, long-nosed armadillo or just seven-banded armadillo, Dasypus septemcinctus, is a species of armadillo from South America...

           Dasypus septemcinctus LC
        • Yepes's Mulita
          Yepes's Mulita
          Yepes's mulita is a species of armadillo in the family Dasypodidae. It is endemic to Argentina. Its natural habitat is subtropical dry forests....

           Dasypus yepesi DD
    • Subfamily: Euphractinae
      Euphractinae
      Euphractinae is a subfamily of armadillo in the Dasypodidae family. It contains the following genera:*Calyptophractus*Chaetophractus Hairy Armadillos*Chlamyphorus*Euphractus six-banded armadillos*Zaedyus pichis...

      • Genus: Chaetophractus
        Chaetophractus
        Chaetophractus is a small genus of armadillos in the Dasypodidae family. It contains the following three species:*Screaming Hairy Armadillo, Chaetophractus vellerosus*Big Hairy Armadillo, Chaetophractus villosus...

        • Andean Hairy Armadillo
          Andean Hairy Armadillo
          The Andean Hairy Armadillo is an armadillo present in Bolivia, in the region of the Puna, the departments of Oruro, La Paz, and Cochabamba . Nowark describes it as distributed in Bolivia and northern Chile. A recent publication of Pacheco et al. also locates the species in Peru...

           Chaetophractus nationi VU
        • Screaming Hairy Armadillo
          Screaming Hairy Armadillo
          The Screaming Hairy Armadillo is a species of armadillo also known as the Small Screaming Armadillo, Crying Armadillo or the Small Hairy Armadillo. It is a burrowing armadillo found in the central and southern parts of South America...

           Chaetophractus vellerosus LC
        • Big Hairy Armadillo
          Big Hairy Armadillo
          Chaetophractus villosus, commonly called the Big Hairy Armadillo is one of the largest and most numerous armadillos in South America. It lives from sea level to altitudes of up to 1,300 meters across the southern portion of South America and can be found in grasslands, forests, savannahs, and has...

           Chaetophractus villosus LC
      • Genus: Calyptophractus
        • Greater Fairy Armadillo
          Greater Fairy Armadillo
          The greater fairy armadillo , also known as Burmeister's armadillo or the Chacoan fairy armadillo, is a species of armadillo in the family Dasypodidae. It is found in Argentina, Bolivia, and Paraguay. Its natural habitats are subtropical or tropical dry shrubland and subtropical or tropical dry...

           Calyptophractus retusus DD
      • Genus: Chlamyphorus
        • Pink Fairy Armadillo
          Pink Fairy Armadillo
          The pink fairy armadillo or pichiciego is the smallest species of armadillo...

           Chlamyphorus truncatus DD
      • Genus: Euphractus
        • Six-banded Armadillo
          Six-banded Armadillo
          The Six-banded Armadillo , also known as the Yellow Armadillo, is a species of armadillo from South America. It is found in Argentina, Bolivia, Brazil, Uruguay, Paraguay and isolated populations in Suriname . Its body is usually yellowish in color, sometimes tan or light reddish-brown...

           Euphractus sexcinctus LC
      • Genus: Zaedyus
        • Pichi
          Pichi
          The Pichi or Dwarf Armadillo is a small armadillo that is the only member the genus Zaedyus. The range of the Pichi is from central and southern Argentina , west to the Andean grasslands of Chile and south to the Strait of Magellan.Its body is approximately long with a tail of 4-6 inches...

           Zaedyus pichiy NT
    • Subfamily: Tolypeutinae
      Tolypeutinae
      Tolypeutinae is a subfamily of armadillo in the Dasypodidae family. It contains the following three extant genera:Kuntinaru*Cabassous*Priodontes*Tolypeutes...

      • Genus: Cabassous
        Cabassous
        Cabassous is a genus of armadillo in the Dasypodidae family. It contains the following species:*Northern Naked-tailed Armadillo, Cabassous centralis*Chacoan Naked-tailed Armadillo, Cabassous chacoensis...

        • Chacoan Naked-tailed Armadillo
          Chacoan Naked-tailed Armadillo
          The Chacoan Naked-tailed Armadillo is a species of armadillo in the Dasypodidae family. It is found in Argentina, Paraguay, and possibly Brazil. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland. It is threatened by habitat loss....

           Cabassous chacoensis NT
        • Greater Naked-tailed Armadillo
          Greater Naked-tailed Armadillo
          The Greater Naked-tailed Armadillo, Cabassous tatouay, is an armadillo species from South America. It is found in Argentina, Bolivia, Brazil, Paraguay, Peru and Uruguay.-References:*...

           Cabassous tatouay LC
      • Genus: Priodontes
        • Giant Armadillo
          Giant Armadillo
          The giant armadillo , colloquially tatou, ocarro, tatu-canastra or tatú carreta, is the largest living species of armadillo...

           Priodontes maximus VU
      • Genus: Tolypeutes
        Tolypeutes
        The genus Tolypeutes contains the two species of three-banded armadillos. They are restricted to South America, mostly Brazil.- Species :There are two recognized species:* Tolypeutes matacus – Southern Three-banded Armadillo...

        • Southern Three-banded Armadillo
          Southern Three-banded Armadillo
          The Southern Three-banded Armadillo , also called the La Plata Three-Banded Armadillo, is an armadillo species from South America...

           Tolypeutes matacus NT

Order: Pilosa
Pilosa
The order Pilosa is a group of placental mammals, extant today only in the Americas. It includes the anteaters and sloths, including the recently extinct ground sloths....

 (anteaters, sloths and tamanduas)

----
The order Pilosa is extant only in the Americas and includes the anteater
Anteater
Anteaters, also known as antbear, are the four mammal species of the suborder Vermilingua commonly known for eating ants and termites. Together with the sloths, they compose the order Pilosa...

s, sloth
Sloth
Sloths are the six species of medium-sized mammals belonging to the families Megalonychidae and Bradypodidae , part of the order Pilosa and therefore related to armadillos and anteaters, which sport a similar set of specialized claws.They are arboreal residents of the jungles of Central and South...

s, and tamandua
Tamandua
Tamandua is a genus of anteaters. It has two members: the Southern Tamandua and the Northern Tamandua . They live in forests and grasslands, are semi-arboreal, and possess partially prehensile tails. They mainly eat ants and termites, but they occasionally eat bees, beetles, and insect larvae...

s.
  • Suborder: Folivora
    • Family: Bradypodidae (three-toed sloths)
      • Genus: Bradypus
        • Brown-throated Three-toed Sloth
          Brown-throated Three-toed Sloth
          The brown-throated sloth is a species of three-toed sloth. It is the most common of the four species of three-toed sloth, and is found in the forests of South and Central America.-Description:...

           Bradypus variegatus LC
  • Suborder: Vermilingua
    • Family: Myrmecophagidae
      Myrmecophagidae
      Myrmecophagidae is a family of anteaters, the name being derived from the Ancient Greek words for 'ant' and 'eat' . Myrmecophagids are native to Central and South America, from southern Mexico to northern Argentina. There are 2 genera and 3 species in the family, consisting of the Giant Anteater,...

       (American anteaters)
      • Genus: Myrmecophaga
        • Giant Anteater
          Giant Anteater
          The Giant Anteater, Myrmecophaga tridactyla, is the largest species of anteater. It is the only species in the genus Myrmecophaga. It is found in Central and South America from Honduras to northern Argentina...

           Myrmecophaga tridactyla VU
      • Genus: Tamandua
        Tamandua
        Tamandua is a genus of anteaters. It has two members: the Southern Tamandua and the Northern Tamandua . They live in forests and grasslands, are semi-arboreal, and possess partially prehensile tails. They mainly eat ants and termites, but they occasionally eat bees, beetles, and insect larvae...

        • Southern Tamandua
          Southern Tamandua
          The southern tamandua, also called a collared anteater, or lesser anteater , is a species of anteater from South America. It is a solitary animal, found in many habitats from mature to highly disturbed secondary forests and arid savannas. It feeds on ants, termites and bees...

           Tamandua tetradactyla LC

Order: Primates

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The order Primates contains all the species commonly related to the lemur
Lemur
Lemurs are a clade of strepsirrhine primates endemic to the island of Madagascar. They are named after the lemures of Roman mythology due to the ghostly vocalizations, reflective eyes, and the nocturnal habits of some species...

s, monkey
Monkey
A monkey is a primate, either an Old World monkey or a New World monkey. There are about 260 known living species of monkey. Many are arboreal, although there are species that live primarily on the ground, such as baboons. Monkeys are generally considered to be intelligent. Unlike apes, monkeys...

s, and ape
Ape
Apes are Old World anthropoid mammals, more specifically a clade of tailless catarrhine primates, belonging to the biological superfamily Hominoidea. The apes are native to Africa and South-east Asia, although in relatively recent times humans have spread all over the world...

s, with the latter category including humans. It is divided informally into three main groupings: prosimian
Prosimian
Prosimians are a grouping of mammals defined as being primates, but not monkeys or apes. They include, among others, lemurs, bushbabies, and tarsiers. They are considered to have characteristics that are more primitive than those of monkeys and apes. Prosimians are the only primates native to...

s, monkeys of the New World
New World monkey
New World monkeys are the five families of primates that are found in Central and South America: Callitrichidae, Cebidae, Aotidae, Pitheciidae, and Atelidae. The five families are ranked together as the Platyrrhini parvorder and the Ceboidea superfamily, which are essentially synonymous since...

, and monkeys and apes of the Old World
Catarrhini
Catarrhini is one of the two subdivisions of the higher primates . It contains the Old World monkeys and the apes, which in turn are further divided into the lesser apes or gibbons and the great apes, consisting of the orangutans, gorillas, chimpanzees, bonobos, and humans...

.
  • Suborder: Haplorrhini
    Haplorrhini
    The haplorhines, the "dry-nosed" primates , are members of the Haplorhini clade: the prosimian tarsiers and the anthropoids...

    • Infraorder: Simiiformes
      • Parvorder: Platyrrhini
        • Family: Cebidae
          Cebidae
          The Cebidae is one of the five families of New World monkeys now recognised. It includes the capuchin monkeys and squirrel monkeys. These species are found throughout tropical and subtropical South and Central America.-Characteristics:...

          • Subfamily: Cebinae
            • Genus: Cebus
              CEBus
              CEBus, short for Consumer Electronics Bus, also known as EIA-600, is a set of electrical standards and communication protocols for electronic devices to transmit commands and data...

              • Black-striped Capuchin
                Black-striped Capuchin
                The black-striped capuchin, Cebus libidinosus, also known as the bearded capuchin, is a capuchin monkey from South America. It was the first non-ape primate where tool usage was documented in the wild, as individuals have been seen cracking nuts by placing them on a stone "anvil" while hitting them...

                 Cebus libidinosus LC
              • Black Capuchin
                Black Capuchin
                The black capuchin, Cebus nigritus, also known as the black-horned capuchin, is a capuchin monkey from the Atlantic Forest in south-eastern Brazil and far north-eastern Argentina. Historically, it was included as a subspecies of the Tufted Capuchin....

                 Cebus nigritus NT
        • Family: Aotidae
          • Genus: Aotus
            • Azara's Night Monkey
              Azara's Night Monkey
              Azara's night monkey, Aotus azarae, is a night monkey species from South America. It is found in Argentina, Bolivia, Peru and Paraguay. It is named after Spanish naturalist Félix de Azara.There are three subspecies of this monkey:...

               Aotus azarae LC
        • Family: Atelidae
          Atelidae
          Atelidae is one of the five families of New World monkeys now recognised. It was formerly included in the family Cebidae. Atelids are generally larger monkeys; the family includes the howler, spider, woolly and woolly spider monkeys...

          • Subfamily: Alouattinae
            • Genus: Alouatta
              • Black Howler
                Black Howler
                The Black howler is a species of howler monkey, a large New World monkey, from northeast Argentina, east Bolivia, east and south Brazil and Paraguay. Together with the brown howler, it is the southernmost member of the Alouatta genus. Only the adult male is black; adult females and juveniles of...

                 Alouatta caraya LC
              • Brown Howler
                Brown Howler
                The Brown howler , also known as Brown howling monkey, is a species of howler monkey, a type of New World monkey, that lives in forests in south-eastern Brazil and far north-eastern Argentina . It lives in groups of 2 to 11 individuals...

                 Alouatta guariba LC

Order: Rodent
Rodent
Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing....

ia (rodents)

----

Rodents make up the largest order of mammals, with over 40 percent of mammalian species. They have two incisor
Incisor
Incisors are the first kind of tooth in heterodont mammals. They are located in the premaxilla above and mandible below.-Function:...

s in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the capybara
Capybara
The capybara , also known as capivara in Portuguese, and capibara, chigüire in Venezuela, Colombia, and Ecuador ronsoco in Peru, chigüiro, and carpincho in Spanish, is the largest living rodent in the world. Its closest relatives are agouti, chinchillas, coyphillas, and guinea pigs...

 can weigh up to 45 kg (100 lb).
  • Suborder: Hystricomorpha
    Hystricomorpha
    The term Hystricomorpha has had many definitions throughout its history. In the broadest sense it refers to any rodent with a hystricomorphous zygomasseteric system. This includes the Hystricognathi, Ctenodactylidae, Anomaluridae, and Pedetidae...

    • Family: Erethizontidae (New World porcupines)
      • Subfamily: Erethizontinae
        • Genus: Coendou
          • Brazilian Porcupine
            Brazilian Porcupine
            The Brazilian Porcupine is a porcupine found in Brazil, Argentina, Venezuela, the Guyanas, Bolivia and Trinidad, with a single record from Ecuador. It inhabits tropical forests at elevations up to 1500 m....

             Coendou prehensilis LC
        • Genus: Sphiggurus
          Sphiggurus
          Sphiggurus is a genus of New World porcupine. It contains the following species:*Sphiggurus ichillus - Streaked Dwarf Porcupine*Sphiggurus insidiosus - Bahia Porcupine*Sphiggurus melanurus - Black-tailed Hairy Dwarf Porcupine...

          • Paraguaian Hairy Dwarf Porcupine Sphiggurus spinosus LC
    • Family: Chinchillidae
      Chinchillidae
      The family Chinchillidae contains the chinchillas, viscachas, and their fossil relatives. They are restricted to southern and western South America, often in association with the Andes. They are large rodents, weighing from to , with strong hind legs and large ears...

       (viscachas and chinchillas)
      • Genus: Chinchilla
        Chinchilla
        Chinchillas are crepuscular rodents, slightly larger and more robust than ground squirrels, and are native to the Andes mountains in South America. Along with their relatives, viscachas, they make up the family Chinchillidae....

        • Short-tailed Chinchilla
          Short-tailed Chinchilla
          The short-tailed chinchilla , also called the Bolivian, Peruvian, and Royal chinchilla, is an endangered species of rodent. Their original range included the Andes Mountains of Argentina, Chile, Peru, and Bolivia...

           Chinchilla chinchilla CR
      • Genus: Lagidium
        Lagidium
        Lagidium is a genus of rodent in the family Chinchillidae.It contains the following species:* Northern Viscacha * Southern Viscacha * Wolffsohn's Viscacha...

        • Southern Viscacha
          Southern Viscacha
          The Southern Viscacha is a species of rodent in the family Chinchillidae. It is found in Argentina, Bolivia, Chile, and Peru....

           Lagidium viscacia LC
        • Wolffsohn's Viscacha
          Wolffsohn's Viscacha
          Wolffsohn's Viscacha is a species of rodent in the family Chinchillidae. It is found in Argentina and Chile. Its natural habitat is rocky areas....

           Lagidium wolffsohni DD
      • Genus: Lagostomus
        Lagostomus
        Lagostomus is a South American genus of rodents in the family Chinchillidae. It contains a single living species, the plains viscacha, and it is the only recent genus in the subfamily Lagostominae....

        • Plains Viscacha
          Plains Viscacha
          The Plains Viscacha or plains vizcacha is a species of rodent in the Chinchillidae family. It is the only living species within the genus Lagostomus. It is found in Argentina, Bolivia, and Paraguay. The plains viscacha is the largest species of the family Chinchillidae...

           Lagostomus maximus LC
    • Family: Caviidae
      Caviidae
      The cavy family is a family of rodents native to South America, and including the domestic guinea pig, wild cavies, and the capybara, among other animals...

       (guinea pigs)
      • Subfamily: Caviinae
        Caviinae
        Caviinae is a subfamily uniting all living members of the family Caviidae with the exception of the maras, capybaras and Kerodon. The subfamily traditionally contained the guinea pig-like forms along with the cursorially adapted Kerodon...

        • Genus: Cavia
          Cavia
          Cavia is a genus in the subfamily Caviinae that contains the rodents commonly known as guinea pigs. The best-known species in this genus is the domestic guinea pig, Cavia porcellus, an important meat animal in South America and a common household pet in the West.-Taxonomic controversy:Cavia are...

          • Brazilian Guinea Pig
            Brazilian Guinea Pig
            The Brazilian Guinea Pig is a guinea pig species from South America. It is found in Argentina, Brazil, Colombia, Ecuador, Paraguay and Uruguay....

             Cavia aperea LC
          • Montane Guinea Pig
            Montane Guinea Pig
            The Montane Guinea Pig, Cavia tschudii, is a guinea pig species from South America. It is found in Peru.Peruvian wild guinea pigs were first described by E. T. Bennett in 1835, who termed them Cavia cutleri...

             Cavia tschudii LC
        • Genus: Galea
          Galea (genus)
          Galea is a genus of South American rodents of the family Caviidae. Four species are known, found in Argentina, Bolivia, Chile, Peru and Brazil. They are as follows:* Brandt's Yellow-toothed Cavy...

          • Common Yellow-toothed Cavy
            Common Yellow-toothed Cavy
            The common yellow-toothed cavy is a species of rodent in the family Caviidae. It is found in Argentina, Bolivia, Chile, and Peru. It's karyotype has 2n = 68 and FN = 136....

             Galea musteloides LC
        • Genus: Microcavia
          Microcavia
          Microcavia is a rodent genus in the family Caviidae.It contains the following species:* Southern Mountain Cavy, Microcavia australis* Andean Mountain Cavy, Microcavia niata...

          • Southern Mountain Cavy
            Southern Mountain Cavy
            The southern mountain cavy is a species of rodent in the family Caviidae. It is found in Argentina, Bolivia, and Chile....

             Microcavia australis LC
          • Shipton's Mountain Cavy
            Shipton's Mountain Cavy
            The Shipton's Mountain Cavy is a species of rodent in the family Caviidae. It is endemic to Argentina....

             Microcavia shiptoni NT
      • Subfamily: Dolichotinae
        • Genus: Dolichotis
          • Patagonian Mara
            Patagonian Mara
            The Patagonian Mara, Dolichotis patagonum, is a relatively large rodent in the mara genus . It is also known as the Patagonian cavy or Patagonian hare. This herbivorous, somewhat rabbit-like animal is found in open and semi-open habitats in Argentina, including large parts of Patagonia...

             Dolichotis patagonum NT
          • Chacoan Mara
            Chacoan Mara
            The Chacoan Mara, Dolichotis salinicola, is a relatively large rodent from South America of the cavy family. They are a close relative of the better known Patagonian Mara.-Habitat:...

             Dolichotis salinicola LC
      • Subfamily: Hydrochaeridae (capybaras)
        • Genus: Hydrochoerus
          Hydrochoerus
          The genus Hydrochoerus contains two living species of capybaras from South America and Panama, the largest living rodents in the world. The genus name is derived from the Greek ὕδωρ plus χοίρος ....

          • Capybara
            Capybara
            The capybara , also known as capivara in Portuguese, and capibara, chigüire in Venezuela, Colombia, and Ecuador ronsoco in Peru, chigüiro, and carpincho in Spanish, is the largest living rodent in the world. Its closest relatives are agouti, chinchillas, coyphillas, and guinea pigs...

             Hydrochoerus hydrochaeris LC
    • Family: Dasyproctidae
      Dasyproctidae
      Dasyproctidae is a family of large South American rodents, comprising the agoutis and acouchis. Their fur is a reddish or dark colour above, with a paler underside. They are herbivorous, often feeding on ripe fruit that falls from trees...

       (agoutis and pacas)
      • Genus: Dasyprocta
        • Azara's Agouti
          Azara's Agouti
          Azara's Agouti, Dasyprocta azarae, is a South American agouti species from the family Dasyproctidae. It is found in Brazil, Paraguay and Argentina. It is named after Spanish naturalist Félix de Azara.-Behaviour:...

           Dasyprocta azarae DD
        • Central American Agouti
          Central American Agouti
          The Central American Agouti is an agouti species from the family Dasyproctidae. The species is widespread in Mesoamerica and South America. The northern section of the range occurs from Chiapas and the Yucatan Peninsula to northern Ecuador and Colombia and western Venezuela...

           Dasyprocta punctata LC
    • Family: Cuniculidae
      Paca
      The Lowland Paca , also known as the Spotted Paca, is a large rodent found in tropical and sub-tropical America, from East-Central Mexico to Northern Argentina...

      • Genus: Cuniculus
        Paca
        The Lowland Paca , also known as the Spotted Paca, is a large rodent found in tropical and sub-tropical America, from East-Central Mexico to Northern Argentina...

        • Lowland Paca Cuniculus paca LC
    • Family: Ctenomyidae
      • Genus: Ctenomys
        • Argentine Tuco-tuco
          Argentine Tuco-tuco
          The Argentine Tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Argentina....

           Ctenomys argentinus NT
        • Southern Tuco-tuco
          Southern Tuco-tuco
          The Southern Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys australis EN
        • Azara's Tuco-tuco
          Azara's Tuco-tuco
          Azara's Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina. It is named after Spanish naturalist Félix de Azara....

           Ctenomys azarae VU
        • Berg's Tuco-tuco
          Berg's tuco-tuco
          Berg's tuco-tuco is a species of rodent in the family Ctenomyidae, named after the Latvian-Argentine biologist Frederico Guillermo Carlos Berg. It is endemic to central Argentina. Its habitat is grassy areas overlying sand dunes....

           Ctenomys bergi VU
        • Bolivian Tuco-tuco
          Bolivian Tuco-tuco
          The Bolivian Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Argentina, Bolivia, and Paraguay....

           Ctenomys boliviensis LC
        • Bonetto's Tuco-tuco
          Bonetto's Tuco-tuco
          Bonetto's Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys bonettoi EN
        • Budin's Tuco-tuco
          Budin's tuco-tuco
          Budin's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to northern Argentina. It is viewed as possibly being a subspecies of C. frater. The species is named after Emilio Budin, an Argentine specimen collector who worked with Oldfield Thomas....

           Ctenomys budini DD
        • Colburn's Tuco-tuco
          Colburn's Tuco-tuco
          Colburn's Tuco-tuco is a species of rodent in the family Ctenomyidae. It is known only from Argentina....

           Ctenomys colburni DD
        • Puntilla Tuco-tuco
          Puntilla tuco-tuco
          The Puntilla tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to central Argentina. The common name of the species comes from the municipality of La Puntilla at the type locality....

           Ctenomys coludo DD
        • Conover's Tuco-tuco
          Conover's Tuco-tuco
          Conover's Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Argentina, Bolivia, and Paraguay....

           Ctenomys conoveri LC
        • D'Orbigny's Tuco-tuco
          D'Orbigny's tuco-tuco
          D'Orbigny's tuco-tuco is a species of rodent in the family Ctenomyidae, named after French naturalist Alcide d'Orbigny. It is found in northeast Argentina....

           Ctenomys dorbignyi NT
        • Emily's Tuco-tuco
          Emily's Tuco-tuco
          Emily's Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.-References:*Woods, C. A. and C. W. Kilpatrick. 2005. Hystricognathi. pp 1538–1600 in Mammal Species of the World a Taxonomic and Geographic Reference 3rd ed. D. E. Wilson and D. M. Reeder eds....

           Ctenomys emilianus NT
        • Famatina Tuco-tuco
          Famatina tuco-tuco
          The Famatina tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to northern Argentina. The common name of the species comes from the municipality, department and mountain range of the same name at the type locality....

           Ctenomys famosus DD
        • Foch's Tuco-tuco
          Foch's tuco-tuco
          Foch's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to northwestern Argentina, where it is known from southwestern Catamarca Province. The species is named after World War I general Ferdinand Foch....

           Ctenomys fochi DD
        • Lago Blanco Tuco-tuco
          Lago Blanco tuco-tuco
          The Lago Blanco tuco-tuco is a species of rodent in the family Ctenomyidae. It is known only from the Lago Blanco area in southern Argentina....

           Ctenomys fodax DD
        • Reddish Tuco-tuco
          Reddish Tuco-tuco
          The Reddish Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Bolivia. It's conservation status was accessed as "Least Concern" by the IUCN in 1996....

           Ctenomys frater LC
        • Tawny Tuco-tuco
          Tawny Tuco-tuco
          The Tawny Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Argentina and Chile....

           Ctenomys fulvus LC
        • Haig's Tuco-tuco
          Haig's Tuco-tuco
          Haig's tuco-tuco , known regionally as the Patagonian tuco-tuco, is a South American hystricognath rodent. Like other tuco-tucos it is subterranean and thus not often observed, although the "tuc-tuc" call of the males can be heard near burrow sites, especially in early morning. Like most species...

           Ctenomys haigi LC
        • San Juan Tuco-tuco
          San Juan tuco-tuco
          The San Juan tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to west central Argentina, where it is known only from southern San Juan Province....

           Ctenomys johannis DD
        • Jujuy Tuco-tuco
          Jujuy tuco-tuco
          The Jujuy tuco-tuco is a species of rodent in the family Ctenomyidae. It is known only from one location in Jujuy Province in northern Argentina....

           Ctenomys juris DD
        • Catamarca Tuco-tuco
          Catamarca Tuco-tuco
          The Catamarca Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.-References:...

           Ctenomys knighti DD
        • Mottled Tuco-tuco
          Mottled Tuco-tuco
          The Mottled Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.Its natural habitat is subtropical or tropical dry lowland grassland....

           Ctenomys latro VU
        • Magellanic Tuco-tuco
          Magellanic Tuco-tuco
          The Magellanic Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Argentina and Chile.Its natural habitat is subtropical or tropical dry lowland grassland....

           Ctenomys magellanicus VU
        • Maule Tuco-tuco
          Maule Tuco-tuco
          The Maule Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Argentina and Chile....

           Ctenomys maulinus LC
        • Mendoza Tuco-tuco
          Mendoza Tuco-tuco
          The Mendoza Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys mendocinus LC
        • Tiny Tucu-tuco
          Tiny Tucu-tuco
          The Tiny Tuco-tuco, Ctenomys minutus, is a tuco-tuco species from South America. It is found in Brazil.-References:*...

           Ctenomys minutus DD
        • Furtive Tuco-tuco
          Furtive Tuco-tuco
          The Furtive Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.-References:...

           Ctenomys occultus EN
        • Highland Tuco-tuco
          Highland Tuco-tuco
          The Highland Tuco-tuco is a species of rodent in the family Ctenomyidae.It is found in Argentina, Bolivia, Chile, and Peru....

           Ctenomys opimus LC
        • Reig's Tuco-tuco
          Reig's tuco-tuco
          Reig's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to central Argentina, where it is known only from a grassland location in Cordoba Province at an elevation above 2000 m in the Sierras Grandes. The species is threatened by disruption of its habitat by fire and sheep...

           Ctenomys osvaldoreigi CR
        • Goya Tuco-tuco
          Goya Tuco-tuco
          The Goya Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys perrensis LC
        • San Luis Tuco-tuco
          San Luis Tuco-tuco
          The San Luis Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys pontifex DD
        • Porteous's Tuco-tuco
          Porteous's Tuco-tuco
          Porteous's Tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Argentina. The species is named after Lieutenant Colonel John James Porteous and his nephew Don Cecil John Montague Porteous , who owned land in Argentina....

           Ctenomys porteousi NT
        • Pundt's tuco-tuco
          Pundt's tuco-tuco
          Pundt's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to the pampas of southern Córdoba and San Luis Provinces in central Argentina. The species is named after Argentine landowner and collector Moritz Pundt. It has a fragmented population and is threatened by conversion...

           Ctenomys pundti VU
        • Rio Negro Tuco-tuco
          Rio Negro tuco-tuco
          The Rio Negro tuco-tuco is a species of rodent in the family Ctenomyidae. It is found in a small fragmented range in Entre Ríos Province in northeastern Argentina and in the Río Negro Department of western Uruguay. It is restricted to sand dunes, and is threatened by the conversion of this habitat...

           Ctenomys rionegrensis EN
        • Roig's Tuco-tuco
          Roig's tuco-tuco
          Roig's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to a small region near the Paraná River in Corrientes Province, northeastern Argentina, where lives on sand dunes, and near rivers. Development is degrading and shrinking this habitat, threatening the rodent's...

           Ctenomys roigi CR
        • Salta Tuco-tuco
          Salta Tuco-tuco
          The Salta Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys saltarius DD
        • Scaglia's Tuco-tuco
          Scaglia's tuco-tuco
          Scaglia's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to a locality in Tucumán Province, northern Argentina. The species is named after Argentine naturalist Galileo Juan Scaglia ....

           Ctenomys scagliai DD
        • Silky Tuco-tuco
          Silky Tuco-tuco
          The Silky Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.-References:...

           Ctenomys sericeus DD
        • Social Tuco-tuco
          Social Tuco-tuco
          The Social Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.Its natural habitat is subtropical or tropical dry lowland grassland....

           Ctenomys sociabilis CR
        • Forest Tuco-tuco
          Forest tuco-tuco
          The forest tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Salta and southeast Jujuy Provinces in northwest Argentina....

           Ctenomys sylvanus DD
        • Talas Tuco-tuco
          Talas Tuco-tuco
          The Talas Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys talarum LC
        • Collared Tuco-tuco
          Collared Tuco-tuco
          The Collared Tuco-tuco, Ctenomys torquatus, is a tuco-tuco species from South America. It is found in Brazil and Uruguay.-References:*...

           Ctenomys torquatus LC
        • Robust Tuco-tuco
          Robust Tuco-tuco
          The Robust Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.-References:...

           Ctenomys tuconax DD
        • Tucuman Tuco-tuco
          Tucuman Tuco-tuco
          The Tucuman Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina....

           Ctenomys tucumanus DD
        • Sierra Tontal Tuco-tuco
          Sierra Tontal tuco-tuco
          The Sierra Tontal tuco-tuco is a species of rodent in the family Ctenomyidae. It is known only from a small locality in the Sierra del Tontal, San Juan Province, west central Argentina....

           Ctenomys tulduco DD
        • Strong Tuco-tuco
          Strong Tuco-tuco
          The Strong Tuco-tuco is a species of rodent in the family Ctenomyidae.It is endemic to Argentina.-References:...

           Ctenomys validus DD
        • Vipos Tuco-tuco
          Vipos tuco-tuco
          The Vipos tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to northern Tucumán Province in northern Argentina. It's common name is a reference to the city of Vipos in the area....

           Ctenomys viperinus DD
        • Yolanda's Tuco-tuco
          Yolanda's tuco-tuco
          Yolanda's tuco-tuco is a species of rodent in the family Ctenomyidae. The species is endemic to Santa Fe Province, northeast Argentina where it lives near rivers. It is named after Argentine biologist Yolanda Davis....

           Ctenomys yolandae DD
    • Family: Octodontidae
      Octodontidae
      The Octodontidae are a family of rodents, restricted to south-western South America. Thirteen species of octodontid are recognised, arranged in nine genera. The best known species is the Degu, Octodon degus....

      • Genus: Aconaemys
        Aconaemys
        Aconaemys is a genus of rodent in the Octodontidae family.It contains the following species:* Chilean Rock Rat * Porter’s Rock Rat * Sage's Rock Rat - References :...

        • Chilean Rock Rat
          Chilean Rock Rat
          The Chilean Rock Rat is a species of rodent in the family Octodontidae.It is found in Argentina and Chile.-References:...

           Aconaemys fuscus LC
        • Sage's Rock Rat
          Sage's Rock Rat
          Sage's Rock Rat is a species of rodent in the family Octodontidae.It is found in Argentina and possibly Chile.-References:...

           Aconaemys sagei DD
      • Genus: Octodon
        Octodon
        Octodon is a genus of octodontid rodents, of which the best-known member is the degu O. degus. The full list of species is:* O. bridgesi, Bridge's Degu, found in Argentina and Chile...

        • Bridges's Degu Octodon bridgesi VU
      • Genus: Octodontomys
        • Mountain Degu
          Mountain Degu
          The Mountain Degu is a species of rodent in the family Octodontidae. It is monotypic within the genus Octodontomys. It is found in Argentina, Bolivia, and Chile....

           Octodontomys gliroides LC
      • Genus: Octomys
        • Viscacha Rat
          Viscacha Rat
          The viscacha rat , or mountain viscacha rat, is a species of rodent in the family Octodontidae. It is endemic to Chile and Argentina.It is the only living species within the genus Octomys...

           Octomys mimax LC
      • Genus: Pipanacoctomys
        Pipanacoctomys
        The Golden Vizcacha Rat ' is the single species of the genus Pipanacoctomys of the rodent family Octodontidae. This animal is tetraploid and has 4x = 2n = 92 chromosomes...

        • Golden Vizcacha Rat Pipanacoctomys aureus CR
      • Genus: Salinoctomys
        • Chalchalero Vizcacha Rat
          Chalchalero vizcacha rat
          The Chalchalero vizcacha rat is a species of caviomorph rodent in the family Octodontidae. It is monotypic within the genus Salinoctomys. The species is endemic to a small area of northwestern Argentina, where it lives in shrublands bordering the salt flats of the Salinas Grandes. Its diet...

           Salinoctomys loschalchalerosorum CR
      • Genus: Tympanoctomys
        • Plains Viscacha Rat
          Plains Viscacha Rat
          The Plains Viscacha Rat or Red Vizcacha Rat is a species of rodent in the family Octodontidae. It is monotypic within the genus Tympanoctomys. It is endemic to central western Argentina, where it has a fragmented range. Its natural habitat is desert scrubland, dunes and salt flats, where it eats...

           Tympanoctomys barrerae NT
    • Family: Abrocomidae
      • Genus: Abrocoma
        Abrocoma
        Abrocoma is a genus of abrocomid rodents found in the Andes of South America, from southern Peru to central Chile. The genus contains eight species, most of which are found in isolated mountain ranges in northwestern Argentina.- Species :...

        • Budin's Chinchilla Rat
          Budin's Chinchilla Rat
          Budin's Chinchilla Rat is a species of chinchilla rat in the family Abrocomidae. Found only in Argentina, the categorization of this species was based on analysis a single specimen. In 2002, Braun and Mares from the University of Oklahoma examined this specimen and confirmed it to be a separate...

           Abrocoma budini DD
        • Ashy Chinchilla Rat
          Ashy Chinchilla Rat
          The Ashy Chinchilla Rat is a species of chinchilla rat in the family Abrocomidae.They are found in Argentina, Bolivia, Chile, and Peru.-Description:...

           Abrocoma cinerea LC
        • Famatina Chinchilla Rat
          Famatina Chinchilla Rat
          The Famatina Chinchilla Rat is a species of chinchilla rat in the family Abrocomidae found only in Argentina....

           Abrocoma famatina DD
        • Sierra del Tontal Chinchilla Rat
          Sierra del Tontal Chinchilla Rat
          The Sierra del Tontal Chinchilla Rat is a species of chinchilla rat in the family Abrocomidae. Found only in Argentina, this species was once thought to be part of Abrocoma cinerea. In 2002, Braun and Mares from the University of Oklahoma confirmed it to be a separate species....

           Abrocoma shistacea DD
        • Uspallata Chinchilla Rat
          Uspallata Chinchilla Rat
          The Uspallata Chinchilla Rat is a species of chinchilla rat in the family Abrocomidae native to Argentina. This species was identified in 2002, by Braun and Mares from the University of Oklahoma. Only a single specimen exists....

           Abrocoma uspallata DD
        • Punta de Vacas Chinchilla Rat
          Punta de Vacas Chinchilla Rat
          The Punta de Vacas Chinchilla Rat also known as the Mendozan Chinchilla Rat is a species of chinchilla rat in the family Abrocomidae. Found only in Argentina, this species was once thought to be part of Abrocoma cinerea...

           Abrocoma vaccarum DD
    • Family: Echimyidae
      • Subfamily: Dactylomyinae
        • Genus: Kannabateomys
          • Atlantic Bamboo Rat Kannabateomys amblyonyx LC
      • Subfamily: Eumysopinae
        • Genus: Euryzygomatomys
          Euryzygomatomys
          Euryzygomatomys is a South American rodent genus in the family Echimyidae. It contains two species, found in Argentina, Brazil and Paraguay. They are as follows:* Brandt's Guiara...

          • Fischer's Guiara
            Fischer's Guiara
            The Guiara, Euryzygomatomys spinosus, or Fischer's Guiara, is a spiny rat species from South America. It is found in Argentina, Brazil and Paraguay. It is one of only two species in the genus Euryzygomatomys.-References:*...

             Euryzygomatomys spinosus LC
    • Family: Myocastoridae (coypus)
      • Genus: Myocastor
        • Coypu
          Coypu
          The coypu , , also known as the river rat, and nutria, is a large, herbivorous, semiaquatic rodent and the only member of the family Myocastoridae. Originally native to subtropical and temperate South America, it has since been introduced to North America, Europe, Asia, and Africa, primarily by...

           Myocastor coypus LC


  • Suborder: Sciurognathi
    Sciurognathi
    Sciurognathi is a suborder of rodents that includes squirrels, chipmunks, beavers, and many types of mice. The group is characterized by a specific shape to the lower jaw. In sciurognaths, the angular process of the jaw is in the same plane as the root of the incisors...

    • Family: Sciuridae (squirrels)
      • Subfamily: Sciurinae
        Sciurinae
        The Sciurinae is a subfamily of squirrels in the . It unites the flying squirrels with certain related tree squirrels. Older sources place the flying squirrels in a separate subfamily and unite all remaining sciurids into the subfamily Sciurinae, but this has been strongly refuted by genetic...

        • Tribe: Sciurini
          Sciurini
          Sciurini is a tribe that includes about forty species of squirrels, mostly from the Americas. It includes five living genera—the American dwarf squirrels, Microsciurus; the Bornean Rheithrosciurus; the widespread American and Eurasian tree squirrels of the genus Sciurus, which includes some of the...

          • Genus: Sciurus
            Sciurus
            The genus Sciurus contains most of the common, bushy-tailed squirrels in North America, Europe, temperate Asia, Central America and South America.-Species:There are 30 species.Genus Sciurus - Tree squirrels*Subgenus Sciurus...

            • Brazilian Squirrel
              Brazilian Squirrel
              The Brazilian squirrel is a tree squirrel in the genus Sciurus endemic to South America. It is found in North-eastern Argentina, Brazil, Guyana, French Guiana, Suriname and Venezuela....

               Sciurus aestuans LC
            • Bolivian Squirrel
              Bolivian Squirrel
              The Bolivian squirrel is a tree squirrel in the family Sciuridae endemic to South America. It is found in Argentina, Bolivia, Brazil and Peru at elevations up to in the Andes region.-References:...

               Sciurus ignitus DD

    • Family: Cricetidae
      Cricetidae
      The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, and New World rats and mice...

      • Subfamily: Sigmodontinae
        Sigmodontinae
        The subfamily Sigmodontinae is one of the most diverse groups of mammals. It includes New World rats and mice, with at least 376 species. Many authorities include the Neotominae and Tylomyinae as part of a larger definition of Sigmodontinae. When those genera are included, the species count...

        • Genus: Abrawayaomys
          • Abrawayaomys chebezi
          • Ruschi's Rat
            Ruschi's Rat
            Ruschi's Rat , Abrawayaomys ruschii, is a rodent species found in Argentina and Brazil. Some cranial features suggest it may be an archaic relative of the Thomas's Parmo mouse . The upper parts are greyish yellow with a darker head and yellowish-white underparts...

             Abrawayaomys ruschii LC
        • Genus: Abrothrix
          Abrothrix
          Abrothrix is a genus of rodent in the tribe Abrotrichini of family Cricetidae.It contains the following living species:*Abrothrix andinus*Abrothrix hershkovitzi*Abrothrix illuteus*Abrothrix jelskii*Abrothrix lanosus...

          • Andean Altiplano Mouse
            Andean Altiplano Mouse
            Abrothrix andinus, also known as the Andean Altiplano Mouse or Andean Akodont, is a species of rodent in the genus Abrothrix of family Cricetidae. It is found in the altiplano habitat of the Andes from central Peru through Bolivia south to Argentina and Chile.-Literature cited:*Musser, G.G. and...

             Abrothrix andinus LC
          • Gray Grass Mouse
            Gray Grass Mouse
            Abrothrix illuteus, also known as the Gray Akodont or Gray Grass Mouse, is a species of rodent in the genus Abrothrix of family Cricetidae. It is found only in northwestern Argentina.-Literature cited:...

             Abrothrix illuteus NT
          • Jelski's Altiplano Mouse
            Jelski's Altiplano Mouse
            Abrothrix jelskii, also known as Jelski's Altiplano Mouse, Jelski's Grass Mouse, or the Ornate Akodont, is a species of rodent in the genus Abrothrix of family Cricetidae. It is found in the altiplano habitat of the Andes from central Peru through Bolivia into northwestern Argentina. Populations...

             Abrothrix jelskii LC
          • Woolly Grass Mouse
            Woolly Grass Mouse
            Abrothrix lanosus, also known as the Woolly Grass Mouse or Woolly Akodont, is a species of rodent in the family Cricetidae.It is found in southern Argentina and Chile. It was previously classified in the genus Akodon rather than Abrothrix.-Literature cited:*Musser, G.G. and Carleton, M.D. 2005....

             Abrothrix lanosus LC
          • Long-haired Grass Mouse
            Long-haired Grass Mouse
            Abrothrix longipilis, also known as the Long-haired Grass Mouse or Long-haired Akodont, is a species of rodent in the family Cricetidae....

             Abrothrix longipilis LC
          • Olive Grass Mouse
            Olive Grass Mouse
            Abrothrix olivaceus, also known as the Olive Grass Mouse or Olive Akodont, is a species of rodent in the genus Abrothrix of family Cricetidae. It is found from northern Chile into southern Chile and Argentina, including the island of Tierra del Fuego. It has had a complex history in both of the...

             Abrothrix olivaceus LC
          • Sanborn's Grass Mouse
            Sanborn's Grass Mouse
            Abrothrix sanborni, also known as Sanborn's Grass Mouse or Sanborn's Akodont, is a species of rodent in the genus Abrothrix of family Cricetidae. It is found in southern Argentina and Chile, but may not be distinct from A. longipilis....

             Abrothrix sanborni NT
        • Genus: Akodon
          Akodon
          Akodon is a genus consisting of South American grass mice. They mostly occur south of the Amazon Basin and along the Andes north to Venezuela, but are absent from much of the basin itself, the far south of the continent, and the lowlands west of the Andes. Akodon is one of the most species-rich...

          • White-bellied Grass Mouse
            White-bellied Grass Mouse
            Akodon albiventer, also known as the White-bellied Grass Mouse or White-bellied Akodont, is a species of rodent in the family Cricetidae...

             Akodon albiventer LC
          • Azara's Grass Mouse
            Azara's Grass Mouse
            Akodon azarae, also known as Azara's Akodont or Azara's Grass Mouse, is a rodent species from South America. It is found from southernmost Brazil through Paraguay and Uruguay into eastern Argentina. It is named after Spanish naturalist Félix de Azara.-Literature cited:*D'Elia, G. and Pardinas, U....

             Akodon azarae LC
          • Bolivian Grass Mouse
            Bolivian Grass Mouse
            Akodon boliviensis, also known as the Bolivian Grass Mouse or Bolivian Akodont, is a species of rodent in the family Cricetidae. It is found in the Andes from southeastern Peru through Bolivia into northwestern Argentina.-Literature cited:...

             Akodon boliviensis LC
          • Budin's Grass Mouse
            Budin's Grass Mouse
            Akodon budini, also known as Budin's Akodont or Budin's Grass Mouse, is a species of rodent in the family Cricetidae. It is found in the Andes of northwestern Argentina and adjacent Bolivia. The species is named after Emilio Budin, an Argentine specimen collector who worked with Oldfield...

             Akodon budini LC
          • Akodon caenosus
          • Cursor Grass Mouse
            Cursor Grass Mouse
            The Cursor Grass Mouse or Cursorial Akodont , is a rodent species from South America. It is found in Argentina and Brazil....

             Akodon cursor LC
          • Dolorous Grass Mouse
            Dolorous Grass Mouse
            The Dolorous Grass Mouse or Córdoba Akodont is a species of rodent in the family Cricetidae.It is found only in Argentina....

             Akodon dolores LC
          • Smoky Grass Mouse
            Smoky Grass Mouse
            The Smoky Grass Mouse is a species of rodent in the family Cricetidae. It is found in Argentina, Bolivia and Peru....

             Akodon fumeus LC
          • Akodon glaucinus
          • Intelligent Grass Mouse
            Intelligent Grass Mouse
            The Intelligent Grass Mouse or Patagonian Akodont is a species of rodent in the family Cricetidae.It is found in Argentina and Chile.-Bibliography:...

             Akodon iniscatus LC
          • Altiplano Grass Mouse
            Altiplano Grass Mouse
            The Altiplano Grass Mouse is a species of rodent in the family Cricetidae.It is found in Bolivia, and Peru.-References:...

             Akodon lutescens LC
          • Montane Grass Mouse
            Montane Grass Mouse
            The Montane Grass Mouse, Akodon montensis, is a rodent species from South America. It is found in Argentina, Brazil, Paraguay and Uruguay.-References:*...

             Akodon montensis LC
          • Neuquén Grass Mouse
            Neuquen Grass Mouse
            The Neuquén Grass Mouse is a species of rodent in the family Cricetidae.It is found only in Argentina....

             Akodon neocenus DD
          • Paraná Grass Mouse
            Paraná Grass Mouse
            The Paraná Grass Mouse, Akodon paranaensis, is a South American rodent species of the family Cricetidae. It is found in northeastern Argentina and southeastern Brazil.-References:*...

             Akodon paranaensis LC
          • Philip Myers' Akodont Akodon philipmyersi DD
          • Akodon polopi
          • White-throated Grass Mouse
            White-throated Grass Mouse
            The White-throated or Grey-bellied Grass Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Bolivia.-References:...

             Akodon simulator LC
          • Spegazzini's Grass Mouse
            Spegazzini's Grass Mouse
            Akodon spegazzinii, also known as Spegazzini's Akodont or Spegazzini's Grass Mouse, is a rodent in the genus Akodon found in northwestern Argentina. It occurs in grassland and forest at 400 to 3500 m above sea level...

             Akodon spegazzinii LC
          • Forest Grass Mouse
            Forest Grass Mouse
            Akodon sylvanus, also known as the Forest Grass Mouse or Woodland Akodont, is a species of rodent in the family Cricetidae.It is found only in a small part of northwestern Argentina.-References:...

             Akodon sylvanus LC
          • Akodon tartareus
          • Chaco Grass Mouse
            Chaco Grass Mouse
            The Chaco Grass Mouse is a species of rodent in the family Cricetidae.It is found in Argentina, Bolivia, and Paraguay.-References:...

             Akodon toba LC
        • Genus: Andalgalomys
          Andalgalomys
          Andalgalomys is a genus of rodent in the family Cricetidae.It contains the following species:* Olrog's Chaco Mouse * Pearson's Chaco Mouse * Roig's Chaco Mouse...

          • Olrog's Chaco Mouse
            Olrog's Chaco Mouse
            Olrog's Chaco Mouse is a species of South American rodent in the family Cricetidae, endemic to Argentina. The natural habitat of the species is hot deserts. It is named after Swedish-Argentine biologist Claes C. Olrog....

             Andalgalomys olrogi LC
        • Genus: Andinomys
          • Andean Mouse
            Andean Mouse
            The Andean Mouse is a species of rodent in the family Cricetidae. It is the only species in the genus Andinomys.It is found in Argentina, Bolivia, Chile, and Peru.-References:...

             Andinomys edax LC
        • Genus: Auliscomys
          Auliscomys
          Auliscomys is a genus of rodent in the family Cricetidae.It contains the following species:* Bolivian Big-eared Mouse * Painted Big-eared Mouse * Andean Big-eared Mouse...

          • Andean Big-eared Mouse
            Andean Big-eared Mouse
            The Andean Big-eared Mouse is a species of rodent in the family Cricetidae.It is found in Argentina, Bolivia, Chile, and Peru.-References:* Baillie, J. 1996. . Downloaded on 9 July 2007....

             Auliscomys sublimis LC
        • Genus: Bibimys
          Bibimys
          Bibimys is a genus of new world rats. Commonly known as the crimson-nosed rats, there are three species:*Bibimys chacoensis - Chaco Crimson-nosed Rat - found in north-east Argentina...

          • Bibimys chacoensis LC
          • Bibimys labiosus LC
          • Bibimys torresi NT
        • Genus: Blarinomys
          • Brazilian Shrew-mouse
            Brazilian Shrew-mouse
            Blarinomys breviceps, also known as the Brazilian Shrew-mouse or the Blarinine Akodont, is a rodent in the tribe Akodontini from the Atlantic Forest of eastern and southeastern Brazil. It is the only species in the genus Blarinomys....

             Blarinomys breviceps LC
        • Genus: Brucepattersonius
          • Guaraní Brucie
            Guaraní brucie
            Brucepattersonius guarani, also known as the Guaraní Akodont or Guaraní Brucie, is a South American rodent in the genus Brucepattersonius. It is known from a single specimen from Misiones Province in northeastern Argentina, at the southern end of the Atlantic Forest.-Literature cited:*Duff, A. and...

             Brucepattersonius guarani DD
          • Ihering's Hocicudo
            Ihering's Hocicudo
            Brucepattersonius iheringi, also known as Ihering's Akodont, Ihering's Hocicudo, or Ihering's Brucie, is a South American rodent in the genus Brucepattersonius. It occurs in Santa Catarina and Rio Grande do Sul, southern Brazil, and nearby Misiones Province, Argentina.-Literature cited:*Christoff,...

             Brucepattersonius iheringi LC
          • Misiones Brucie
            Misiones brucie
            Brucepattersonius misionensis, also known as the Misiones Akodont or Misiones Brucie, is a rodent species from South America in the genus Brucepattersonius. It is known from a single individual collected in Misiones Province in northeastern Argentina. Its taxonomic status remains to be determined...

             Brucepattersonius misionensis DD
          • Arroyo of Paradise Brucie
            Arroyo of Paradise brucie
            The Arroyo of Paradise brucie, Brucepattersonius paradisus, is a South American rodent species of the family Cricetidae. It is known only from northeastern Argentina....

             Brucepattersonius paradisus DD
        • Genus: Calomys
          • Bolivian Vesper Mouse
            Bolivian Vesper Mouse
            The Bolivian Vesper Mouse is a species of rodent in the family Cricetidae. It is found in Argentina, Bolivia and perhaps Peru....

             Calomys boliviae LC
          • Crafty Vesper Mouse
            Crafty Vesper Mouse
            The Crafty Vesper Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Paraguay.-References:* Baillie, J. 1996. . Downloaded on 9 July 2007....

             Calomys callidus LC
          • Large Vesper Mouse
            Large Vesper Mouse
            The Large Vesper Mouse, Calomys callosus, is a rodent species from South America. It is found in Argentina, Bolivia, Brazil and Paraguay.It is particularly notable as the vector of Bolivian hemorrhagic fever....

             Calomys callosus LC
          • Small Vesper Mouse
            Small Vesper Mouse
            The Small Vesper Mouse, Calomys laucha, is a rodent species from South America. It is found in Argentina, Bolivia, Brazil, Paraguay and Uruguay. It is one of the hosts of hantavirus, causing Hantavirus pulmonary syndrome...

             Calomys laucha LC
          • Andean Vesper Mouse
            Andean Vesper Mouse
            The Andean Vesper Mouse is a species of rodent in the family Cricetidae.It is found in Argentina, Bolivia, Chile, and Peru.-References:* Baillie, J. 1996. . Downloaded on 9 July 2007....

             Calomys lepidus LC
          • Drylands Vesper Mouse
            Drylands Vesper Mouse
            The Drylands Vesper Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Paraguay.-References:* Baillie, J. 1996. . Downloaded on 9 July 2007....

             Calomys musculinus LC
          • Delicate Vesper Mouse
            Delicate Vesper Mouse
            The Delicate Vesper Mouse, Calomys tener, is a South American rodent species of the family Cricetidae. It is found in Argentina, Bolivia and Brazil.- References :**...

             Calomys tener LC
          • Córdoba vesper mouse
            Córdoba vesper mouse
            The Córdoba vesper mouse is a South American rodent species of the family Cricetidae. It is endemic to the area of Córdoba Province, central Argentina, where it is found in the espinal ....

             Calomys venustus LC
        • Genus: Chelemys
          Chelemys
          Chelemys is a genus of South American rodents in the tribe Abrotrichini of family Cricetidae. Three species—Chelemys delfini, Chelemys macronyx, and Chelemys megalonyx—are known, all found in central and southern Chile and Argentina....

          • Andean Long-clawed Mouse
            Andean Long-Clawed Mouse
            Chelemys macronyx, also known as the Andean Long-clawed Mouse or Andean Long-clawed Akodont, is a species of rodent in the genus Chelemys of family Cricetidae. It is found in Argentina and Chile.-Literature cited:...

             Chelemys macronyx LC
        • Genus: Chinchillula
          • Altiplano Chincilla Mouse Chinchillula sahamae LC
        • Genus: Delomys
          Delomys
          Delomys is a genus of South American rodents in the tribe Thomasomyini of family Cricetidae. Three species are known, all found in Argentina and Brazil. They are as follows:* Montane Atlantic Forest Rat...

          • Striped Atlantic Forest Rat
            Striped Atlantic Forest Rat
            The Striped Atlantic Forest Rat, Delomys dorsalis, is a rodent species from South America. It is found in Argentina and Brazil....

             Delomys dorsalis LC
        • Genus: Deltamys
          • Kemp's Grass Mouse
            Kemp's Grass Mouse
            Kemp's Grass Mouse is a species of rodent in the family Cricetidae. It is the only species in the genus Deltamys.It is found in Argentina, Brazil and Uruguay....

             Deltamys kempi LC
        • Genus: Eligmodontia
          Eligmodontia
          The genus Eligmodontia consists of five or six species of South American sigmodontine mice restricted to Bolivia, Chile, and Argentina. Species of Eligmodontia occur along the eastern side of the Andes Mountains, in Patagonia, and in the Chaco thorn forest of South America. They can be found in...

          • Monte Gerbil Mouse
            Monte Gerbil Mouse
            The Monte Gerbil Mouse or Monte Laucha is a species of rodent in the family Cricetidae.It is found only in Argentina.-References:* Baillie, J. 1996. . Downloaded on 19 July 2007....

             Eligmodontia moreni LC
          • Morgan's Gerbil Mouse
            Morgan's Gerbil Mouse
            Morgan's Gerbil Mouse , also known as the Western Patagonian Laucha, is a species of rodent in the family Cricetidae.It is found in Argentina and Chile.-References:* Baillie, J. 1996. . Downloaded on 19 July 2007....

             Eligmodontia morgani LC
          • Andean Gerbil Mouse
            Andean Gerbil Mouse
            The Andean Gerbil Mouse or Altiplano Laucha is a species of rodent in the family Cricetidae.It is found in Argentina, Bolivia, Chile, and Peru.-References:* Baillie, J. 1996. . Downloaded on 19 July 2007....

             Eligmodontia puerulus LC
          • Highland Gerbil Mouse
            Highland Gerbil Mouse
            Eligmodontia typus is a species of rodent in the family Cricetidae. It is found in Argentina and possibly also Chile. The northernmost population might represent a distinct species, E. bolsonensis, to which the common name Highland Gerbil Mouse would apply...

             Eligmodontia typus LC
        • Genus: Euneomys
          Euneomys
          Euneomys is a genus of rodent in the family Cricetidae.It contains the following species:* Patagonian Chincilla Mouse * Burrowing Chincilla Mouse * Biting Chincilla Mouse...

          • Patagonian Chincilla Mouse
            Patagonian Chincilla Mouse
            The Patagonian Chincilla Mouse is a species of rodent in the family Cricetidae. It is found in Tierra del Fuego and neighboring areas of southernmost Argentina and Chile....

             Euneomys chinchilloides DD
          • Burrowing Chincilla Mouse Euneomys fossor DD
          • Biting Chincilla Mouse
            Biting Chincilla Mouse
            The Biting Chincilla Mouse is a species of rodent in the family Cricetidae. It is found in west central Argentina and nearby areas of Chile, where it inhabits highland meadows, probably at at elevations of 1740 to 3000 m....

             Euneomys mordax LC
          • Peterson's Chincilla Mouse
            Peterson's Chincilla Mouse
            Peterson's Chincilla Mouse is a species of rodent in the family Cricetidae. It is found in west central and southern Argentina and nearby areas of Chile. The species is named after American paleontologist Olaf A. Peterson ....

             Euneomys petersoni LC
        • Genus: Euryoryzomys
          Euryoryzomys
          Euryoryzomys is a genus of rodents in the tribe Oryzomyini of family Cricetidae. It includes six species, which are distributed in South America. Until 2006, its members were included in the genus Oryzomys, but they are not closely related to the type species of that genus, and therefore they were...

          • Tarija Rice Rat Euryoryzomys legatus LC
          • Big-headed Rice Rat
            Big-headed Rice Rat
            Euryoryzomys russatus, also known as the Russet Oryzomys, Russet Rice Rat, or Big-headed Rice Rat, is a species of rodent in the genus Euryoryzomys of family Cricetidae. It is a member of the genus Euryoryzomys, which was split off from Oryzomys in 2006...

             Euryoryzomys russatus LC
        • Genus: Geoxus
          • Long-clawed Mole Mouse
            Long-Clawed Mole Mouse
            Geoxus valdivianus, also known as the Long-clawed Mole Mouse or Valdivian Long-clawed Akodont, is a species of rodent in the tribe Abrotrichini of family Cricetidae found in the Valdivian temperate rain forests and Magellanic subpolar forests of Argentina and Chile. It is the only species in the...

             Geoxus valdivianus LC
        • Genus: Graomys
          Graomys
          Graomys is a genus of rodent in the family Cricetidae.It contains the following species:* Central Leaf-eared Mouse * Pale Leaf-eared Mouse * Edith's Leaf-eared Mouse...

          • Graomys chacoensis (contains the former Graomys centralis)
          • Pale Leaf-eared Mouse
            Pale Leaf-Eared Mouse
            The Pale Leaf-eared Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Bolivia.-References:* Baillie, J. 1996. . Downloaded on 19 July 2007....

             Graomys domorum LC
          • Edith's Leaf-eared Mouse
            Edith's Leaf-Eared Mouse
            Edith's Leaf-eared Mouse is a species of rodentin the family Cricetidae.It is known only from Argentina, where it was found in a montane grassland on Otro Cerro at an elevation of 3000 m.-References:...

             Graomys edithae DD
          • Gray Leaf-eared Mouse
            Gray Leaf-eared Mouse
            The Gray Leaf-eared Mouse, Graomys griseoflavus, is a rodent species from South America. It is found in Argentina, Bolivia, Brazil and Paraguay; its habitat includes the Gran Chaco.-References:*...

             Graomys griseoflavus LC
        • Genus: Holochilus
          Holochilus
          Holochilus is a genus of semiaquatic rodents in the tribe Oryzomyini of family Cricetidae, sometimes called marsh rats. It contains three living species, Holochilus brasiliensis, Holochilus chacarius, and Holochilus sciureus, which are widely distributed in South America east of the Andes, and a...

          • Web-footed Marsh Rat
            Web-footed Marsh Rat
            Holochilus brasiliensis, also known as the Brazilian Marsh Rat or Web-footed Marsh Rat, is a species of semiaquatic rodent from South America. It is found in Argentina, Brazil and Uruguay.-Literature cited:...

             Holochilus brasiliensis LC
          • Chaco Marsh Rat
            Chaco Marsh Rat
            Holochilus chacarius, also known as the Chacoan Marsh Rat or Chaco Marsh Rat, is a semiaquatic rodent species in the family Cricetidae. It is found in Argentina and Paraguay within the Gran Chaco.-Literature cited:...

             Holochilus chacarius LC
        • Genus: Irenomys
          • Chilean Climbing Mouse
            Chilean Climbing Mouse
            Irenomys tarsalis, also known as the Chilean Climbing Mouse, Chilean Tree Mouse, or Long-footed Irenomys, is a rodent found in Chile, from about 36° to 46°S, and in adjacent Argentina, mainly in forests...

             Irenomys tarsalis LC
        • Genus: Juliomys
          Juliomys
          Juliomys is a genus of South American rodents of the family Cricetidae. Four species are known, all found in Argentina and Brazil. They are as follows:* Juliomys anoblepas * Juliomys ossitenuis*Juliomys pictipes...

          • Lesser Wilfred's Mouse
            Lesser Wilfred's Mouse
            The Lesser Wilfred's Mouse, Juliomys pictipes, is a South American rodent species of the family Cricetidae. It is found in northeastern Argentina and southeastern Brazil. The species is arboreal, living in forests at altitudes from sea level to 2000 m. It's karyotype has 2n = 36, FN = 34....

             Juliomys pictipes LC
        • Genus: Kunsia
          Kunsia
          Kunsia is the genus of giant rats. There are two South American species, both of which are classified as vulnerable by IUCN:*K. fronto *K. tomentosus...

          • Fossorial Giant Rat
            Fossorial Giant Rat
            The Fossorial Giant Rat is a species of rodent in the family Cricetidae. It is found in Argentina and Brazil. Its natural habitat is dry savanna....

             Kunsia fronto EN
        • Genus: Loxodontomys
          Loxodontomys
          Loxodontomys is a genus of South American rodents in the tribe Phyllotini of family Cricetidae. Two species are known, found in Argentina and Chile. They are as follows:* Southern Big-eared Mouse...

          • Southern Big-eared Mouse
            Southern Big-eared Mouse
            The southern big-eared mouse , also known as the southern pericote, is a species of rodent in the family Cricetidae. It is found in Argentina and Chile, and is one of only two species in its genus...

             Loxodontomys micropus LC
        • Genus: Necromys
          Necromys
          Necromys is a genus of South American sigmodontine rodents allied to Akodon. This genus has also been known as Cabreramys or more recently Bolomys. N. urichi has recently been transferred from Akodon....

          • Argentine Bolo Mouse
            Argentine bolo mouse
            The Argentine bolo mouse is a species of rodent in the family Cricetidae. It is endemic to central Argentina, where it is found in the pampas and the drier espinal ....

             Necromys benefactus LC
          • Rufous-bellied Bolo Mouse
            Rufous-bellied Bolo Mouse
            The Rufous-bellied Bolo Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Bolivia.-References:* Dunnum, J., Vargas, J., Bernal, N. & Jayat, J.P. 2008. . Downloaded on 18 April 2009....

             Necromys lactens LC
          • Hairy-tailed Bolo Mouse
            Hairy-tailed Bolo Mouse
            The Hairy-tailed Bolo Mouse, Necromys lasiurus, is a rodent species from South America. It is found in Argentina, Bolivia, Brazil and Paraguay.-References:*...

             Necromys lasiurus LC
          • Paraguayan Bolo Mouse
            Paraguayan bolo mouse
            The Paraguayan bolo mouse is a species of rodent in the family Cricetidae. It is known from Bolivia, Paraguay and Peru, and may be present in Argentina and Brazil. It is found at elevations from 300 to 2030 m in a variety of habitats, including cerrado, chaco and heath pampas....

             Necromys lenguarum LC
          • Dark Bolo Mouse
            Dark Bolo Mouse
            The Dark Bolo Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Uruguay.-References:* D'elia, G., Pardinas, U., Jayat, J.P., Teta, P. & Patterson., B. 2008. . Downloaded on 19 April 2009....

             Necromys obscurus NT
          • Temchuk's Bolo Mouse
            Temchuk's Bolo Mouse
            Temchuk's Bolo Mouse is a species of rodent in the family Cricetidae.It is found only in Argentina.-References:* Pardinas, U., D'Elia, G. & Teta, P. 2008. . Downloaded on 19 April 2009....

             Necromys temchuki LC
        • Genus: Nectomys
          Nectomys
          Nectomys is a genus of rodent in the tribe Oryzomyini of family Cricetidae. It is closely related to Amphinectomys and was formerly considered congeneric with Sigmodontomys...

          • Scaly-footed Water Rat
            Scaly-footed Water Rat
            Nectomys squamipes, also known as the Atlantic Forest Nectomys, South American Water Rat, or Scaly-footed Water Rat, is a semiaquatic insectivorous rodent species from Argentina, Brazil, and Paraguay found primarily near forest rivers and streams...

             Nectomys squamipes LC
        • Genus: Neotomys
          • Andean Swamp Rat
            Andean Swamp Rat
            The Andean Swamp Rat is a species of rodent in the family Cricetidae. It is the only species in the genus Neotomys.It is found in Argentina, Bolivia, Chile, and Peru.-References:...

             Neotomys ebriosus LC
        • Genus: Notiomys
          • Edward's Long-clawed Mouse
            Edward's Long-clawed Mouse
            Notiomys edwardsii, also known as Edward's Long-clawed Akodont, Milne-Edwards' Long-clawed Mouse, or Edwards's Long-clawed Mouse, is a rodent in the tribe Abrotrichini from southern Argentina. It is the only species in the genus Notiomys, although species of Chelemys and Geoxus were formerly...

             Notiomys edwardsii LC
        • Genus: Oligoryzomys
          Oligoryzomys
          Oligoryzomys is a genus of rodents in the tribe Oryzomyini of family Cricetidae. Many species are known as pygmy rice rats or colilargos...

          • Brenda's Colilargo
            Brenda's Colilargo
            Oligoryzomys brendae, also known as Brenda's Colilargo, is a South American species of rodent in the genus Oligoryzomys. It is found only in Tucumán Province in northwestern Argentina, but its taxonomic status requires revision....

             Oligoryzomys brendae DD
          • Chacoan Pygmy Rice Rat
            Chacoan Pygmy Rice Rat
            Oligoryzomys chacoensis, also known as the Chacoan Colilargo or Chacoan Pygmy Rice Rat, is a rodent species from South America. It is found in the Gran Chaco region of southeastern Bolivia, southwestern Brazil, Paraguay, and northeastern Argentina.It is one of the hosts of the Hantavirus serotype...

             Oligoryzomys chacoensis LC
          • Destructive Pygmy Rice Rat
            Destructive Pygmy Rice Rat
            Oligoryzomys destructor, also known as Tschudi's Colilargo or the Destructive Pygmy Rice Rat, is a species of rodent in the genus Oligoryzomys of family Cricetidae...

             Oligoryzomys destructor LC
          • Yellow Pygmy Rice Rat
            Yellow Pygmy Rice Rat
            Oligoryzomys flavescens, also known as the Flavescent Colilargo or Yellow Pygmy Rice Rat is a species of rodent in the genus Oligoryzomys of family Cricetidae. It is found in southern South America, occurring in southern Brazil, Paraguay, Uruguay, and northeastern Argentina.-Literature...

             Oligoryzomys flavescens LC
          • Fornes' Colilargo
            Fornes' Colilargo
            Oligoryzomys fornesi, also known as Fornes' Colilargo, is a species of rodent in the genus Oligoryzomys of family Cricetidae. It is found from northeastern Brazil via Paraguay into northeastern Argentina.-Literature cited:...

             Oligoryzomys fornesi LC
          • Long-tailed Pygmy Rice Rat
            Long-Tailed Pygmy Rice Rat
            Oligoryzomys longicaudatus, also known as the Long-tailed Colilargo or Long-tailed Pygmy Rice Rat, is a species of rodent in the genus Oryzomys of family Cricetidae. It is found in the southern Andes of Chile and Argentina, with an outlying population in eastern Argentina.-Literature cited:*Musser,...

             Oligoryzomys longicaudatus LC
          • Magellanic Pygmy Rice Rat
            Magellanic Pygmy Rice Rat
            Oligoryzomys magellanicus, also known as the Patagonian Colilargo and the Magellanic Pygmy Rice Rat, is a species of rodent in the genus Oligoryzomys of family Cricetidae. It is found in southernmost Argentina and Chile, including Tierra del Fuego.-Literature cited:*Musser, G.G. and Carleton, M.D....

             Oligoryzomys magellanicus LC
          • Black-footed Pygmy Rice Rat
            Black-footed Pygmy Rice Rat
            Oligoryzomys nigripes, also known as the Black-footed Colilargo or the Black-footed Pygmy Rice Rat, is a rodent in the genus Oligoryzomys of family Cricetidae. It is found from Pernambuco in northeastern Brazil through the Atlantic Forest and Cerrado into Paraguay, Uruguay, and Argentina, where it...

             Oligoryzomys nigripes LC
        • Genus: Oxymycterus
          Oxymycterus
          Oxymycterus is the genus of hocicudos. They are rat-like animals endemic to South America.Species listing:Oxymycterus is the genus of hocicudos. They are rat-like animals endemic to South America.Species listing:...

          • Argentine Hocicudo
            Argentine Hocicudo
            The Argentine Hocicudo is a species of rodent in the family Cricetidae.It is found only in northern Argentina in yungas habitat.-References:...

             Oxymycterus akodontius DD
          • Hispid Hocicudo
            Hispid Hocicudo
            The Hispid Hocicudo, Oxymycterus hispidus, is a rodent species from South America. It is found in Argentina and Brazil, in the Atlantic Forest....

             Oxymycterus hispidus LC
          • Paramo Hocicudo
            Paramo Hocicudo
            The Paramo Hocicudo is a species of rodent in the family Cricetidae.It is found in Argentina, Bolivia, and Peru.-References:* Baillie, J. 1996. . Downloaded on 19 July 2007....

             Oxymycterus paramensis LC
          • Quaestor Hocicudo
            Quaestor hocicudo
            The quaestor hocicudo is a species of rodent in the family Cricetidae. It is found in southeastern Brazil and northeastern Argentina, where it lives in forest and moist and dry scrub....

             Oxymycterus quaestor LC
          • Red Hocicudo
            Red Hocicudo
            The Red Hocicudo, Oxymycterus rufus, is a rodent species from South America. It is found in Argentina, Brazil and Uruguay....

             Oxymycterus rufus LC
        • Genus: Phyllotis
          Phyllotis
          Phyllotis is a genus of rodent in the family Cricetidae.It contains the following species:* Phyllotis alisosiensis* Friendly Leaf-eared Mouse * Andean Leaf-eared Mouse...

          • Anita's Leaf-eared Mouse
            Anita's leaf-eared mouse
            Anita's leaf-eared mouse is a species of rodent in the family Cricetidae. It was discovered in Tucumán Province in northwestern Argentina in alder forest of the upper part of the Southern Andean Yungas ecoregion, on the eastern slopes of the Andes. The species is terrestrial and nocturnal, and was...

             Phyllotis anitae DD
          • Buenos Aires Leaf-eared Mouse
            Buenos Aires Leaf-eared Mouse
            The Buenos Aires Leaf-eared Mouse is a species of rodent in the family Cricetidae.It is found only in Argentina.-References:* Contreras, L. 1996. . Downloaded on 9 July 2007....

             Phyllotis bonariensis NT
          • Capricorn Leaf-eared Mouse
            Capricorn Leaf-eared Mouse
            The Capricorn Leaf-eared Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Bolivia.-References:* Baillie, J. 1996. . Downloaded on 9 July 2007....

             Phyllotis caprinus LC
          • Bunchgrass Leaf-eared Mouse
            Bunchgrass Leaf-eared Mouse
            The Bunchgrass Leaf-eared Mouse is a species of rodent in the family Cricetidae.It is found in Argentina, Bolivia, and Peru.-References:* Baillie, J. 1996. . Downloaded on 9 July 2007....

             Phyllotis osilae LC
          • Yellow-rumped Leaf-eared Mouse
            Yellow-rumped Leaf-eared Mouse
            The Yellow-rumped Leaf-eared Mouse is a species of rodent in the family Cricetidae.It is the most widespread member of the genus, being found in or near the Andes of Argentina, Chile, Bolivia, and Peru, from sea level to 5,000 m.-References:* Baillie, J. 1996. . Downloaded on 9 July...

             Phyllotis xanthopygus LC
        • Genus: Pseudoryzomys
          • Brazilian False Rice Rat
            Brazilian False Rice Rat
            Pseudoryzomys simplex, also known as the Brazilian False Rice Rat or False Oryzomys, is a species of rodent in the family Cricetidae from south-central South America. It is found in lowland palm savanna and thorn scrub habitats...

             Pseudoryzomys simplex LC
        • Genus: Reithrodon
          Reithrodon
          Reithrodon is a genus of rodent in the family Cricetidae.It contains the following species:* Bunny Rat * Naked-soled Conyrat...

          • Bunny Rat
            Bunny Rat
            The Bunny Rat is a species of rodent in the family Cricetidae. It is found in Argentina, Chile, and Uruguay....

             Reithrodon auritus LC
          • Naked-soled Conyrat
            Naked-soled conyrat
            The naked-soled conyrat is a species of rodent in the family Cricetidae. It is found in grasslands in northern Argentina, southern Brazil, and Uruguay....

             Reithrodon typicus LC
        • Genus: Rhipidomys
          Rhipidomys
          Rhipidomys is a genus of rodents in the family Cricetidae, comprising at least 18 species of climbing mouse:* Southern Climbing Mouse * Cariri Climbing Mouse...

          • Southern Climbing Mouse
            Southern Climbing Mouse
            The Southern Climbing Mouse is a species of rodent in the family Cricetidae.It is found in Argentina and Bolivia.-References:* Baillie, J. 1996. . Downloaded on 20 July 2007....

             Rhipidomys austrinus LC
        • Genus: Salinomys
          • Salt Flat Mouse
            Salt flat mouse
            The salt flat mouse is a sigmodontine rodent species in the family Cricetidae from South America. It is the only species in the genus Salinomys. Its habitat is scrublands bordering salt flats in central western Argentina at elevations around 400 m...

             Salinomys delicatus DD
        • Genus: Scapteromys
          Scapteromys
          Scapteromys is a genus of South American rodents in the tribe Akodontini of family Cricetidae. Two species are known, found in northern Argentina, southern Brazil, Paraguay and Uruguay...

          • Argentine Swamp Rat
            Argentine swamp rat
            The Argentine swamp rat, Scapteromys aquaticus, is a semiaquatic rodent species from South America. It is found in northeastern Argentina and Paraguay, where it lives in freshwater marshes and along the southern coast of the Río de la Plata estuary, as well as in forests.-References:*...

             Scapteromys aquaticus LC
          • Waterhouse's Swamp Rat
            Waterhouse's Swamp Rat
            Waterhouse's Swamp Rat, Scapteromys tumidus, is a semiaquatic rodent species from South America. It is found in southern Brazil, Uruguay and northern Argentina, where it lives in freshwater and salt marshes, as well as open grassland of the pampas....

             Scapteromys tumidus LC
        • Genus: Sooretamys
          • Paraguayan Rice Rat
            Paraguayan Rice Rat
            Sooretamys angouya, also known as the Angouya Oryzomys, Rat-headed Rice Rat, and Paraguayan Rice Rat, is a rodent species from South America. It is found in northeastern Argentina, southern Brazil and Paraguay in forested areas within the Atlantic Forest and cerrado...

             Sooretamys angouya LC
        • Genus: Tapecomys
          • Primordial Tapecua
            Primordial Tapecua
            The Primordial Tapecua is a species of medium sized rodent in the family Cricetidae. The type locality is in southeastern Bolivia. It is the only known species of the genus Tapecomys. Two specimens were found in 1991 in a forested region at an elevation of 1500 m near the village of Tapecua in the...

             Tapecomys primus LC
        • Genus: Thaptomys
          • Blackish Grass Mouse
            Blackish Grass Mouse
            The Blackish Grass Mouse, Thaptomys nigrita, also formerly called the Ebony Akodont, is a rodent species from South America. It is found in Argentina, Brazil, Paraguay and Uruguay. It is the only species in the genus Thaptomys....

             Thaptomys nigrita LC

Order: Lagomorpha
Lagomorpha
The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families, the Leporidae , and the Ochotonidae...

 (lagomorphs)

----

The lagomorphs comprise two families, Leporidae
Leporidae
Leporids are the approximately 50 species of rabbits and hares which form the family Leporidae. The leporids, together with the pikas, constitute the mammalian order Lagomorpha. Leporids differ from pikas in having short furry tails, and elongated ears and hind legs...

 (hare
Hare
Hares and jackrabbits are leporids belonging to the genus Lepus. Hares less than one year old are called leverets. Four species commonly known as types of hare are classified outside of Lepus: the hispid hare , and three species known as red rock hares .Hares are very fast-moving...

s and rabbit
Rabbit
Rabbits are small mammals in the family Leporidae of the order Lagomorpha, found in several parts of the world...

s), and Ochotonidae (pika
Pika
The pika is a small mammal, with short limbs, rounded ears, and short tail. The name pika is used for any member of the Ochotonidae, a family within the order of lagomorphs, which also includes the Leporidae . One genus, Ochotona, is recognised within the family, and it includes 30 species...

s). Though they can resemble rodent
Rodent
Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing....

s, and were classified as a superfamily
Taxonomic rank
In biological classification, rank is the level in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, and class. Each rank subsumes under it a number of less general categories...

 in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two.
  • Family: Leporidae
    Leporidae
    Leporids are the approximately 50 species of rabbits and hares which form the family Leporidae. The leporids, together with the pikas, constitute the mammalian order Lagomorpha. Leporids differ from pikas in having short furry tails, and elongated ears and hind legs...

     (rabbits, hares)
    • Genus: Sylvilagus
      • Tapeti
        Tapeti
        The Tapeti , also known as the Brazilian Rabbit or Forest Rabbit, is a cottontail rabbit species found in Central and South America....

         Sylvilagus brasiliensis LC

Order: Chiroptera (bats)

----

The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals in the world naturally capable of flight. Bat species account for about 20% of all mammals.
  • Family: Noctilionidae
    • Genus: Noctilio
      • Lesser Bulldog Bat
        Lesser Bulldog Bat
        The Lesser Bulldog Bat is an insectivorous and occasionally carnivorous bat of the , ranging through Central America and northern South America....

         Noctilio albiventris LC
      • Greater Bulldog Bat
        Greater Bulldog Bat
        The greater bulldog bat or fisherman bat is a type of fishing bat native to Latin America. The bat uses echolocation to detect water ripples made by the fish upon which it preys, then uses the pouch between its legs to scoop the fish up and its sharp claws to catch and cling to it...

         Noctilio leporinus LC
  • Family: Vespertilionidae
    • Subfamily: Myotinae
      • Genus: Myotis
        • Southern Myotis
          Southern Myotis
          The Southern Myotis is a species of vesper bat in the family Vespertilionidae.It is found only in Argentina....

           Myotis aelleni DD
        • Silver-tipped Myotis
          Silver-tipped Myotis
          The Silver-tipped Myotis is a species of mouse-eared bat found in a range of lowland habitats in the Americas.It is part of the Myotis genus of vesper bats, which includes a large number of common species across the world...

           Myotis albescens LC
        • Chilean Myotis
          Chilean Myotis
          The Chilean Myotis is a species of vesper bat in the family Vespertilionidae.It is found in Argentina and Chile.-Source:* Chiroptera Specialist Group 1996. . Downloaded on 19 July 2007....

           Myotis chiloensis LC
        • Myotis dinellii LC
        • Hairy-legged Myotis
          Hairy-legged Myotis
          The Hairy-Legged Myotis is a species of vesper bat in the Vespertilionidae family.It can be found in the following countries: Argentina, Belize, Bolivia, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, Trinidad and Tobago, and...

           Myotis keaysi LC
        • Yellowish Myotis
          Yellowish Myotis
          The Yellowish Myotis , is a bat species from South America. It is found in Argentina, Bolivia, Brazil and Uruguay.-References:*...

           Myotis levis LC
        • Black Myotis
          Black Myotis
          The Black Myotis , is a bat species from South and Central America.Its body is dark brown/black. The head to body length, not including the tail, is about 5cm . The Black Myotis is a tiny bat with a small pointed non-noseleaf snout. Its ears are pointy and triangular, and extremely sensitive...

           Myotis nigricans LC
        • Riparian Myotis
          Riparian Myotis
          The Riparian Myotis , is a bat species from South and Central America....

           Myotis riparius LC
        • Red Myotis
          Red Myotis
          The Red Myotis , is a South American bat species found in Argentina, Brazil, Paraguay and Uruguay....

           Myotis ruber NT
        • Velvety Myotis
          Velvety Myotis
          The Velvety Myotis , is a bat species from South America. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Peru and Paraguay....

           Myotis simus DD
    • Subfamily: Vespertilioninae
      Vespertilioninae
      Vespertilioninae is a subfamily of Vesper Bats from the family Vespertilionidae.-Classification:Subfamily Vespertilioninae*Tribe Eptesicini**Genus Arielulus***Collared Pipistrelle, Arielulus aureocollaris...

      • Genus: Eptesicus
        Eptesicus
        Eptesicus is a genus of bats, commonly called house bats, in the family Vespertilionidae.The 25 species within this genus are:*Little black serotine *Bobrinski's Serotine...

        • Brazilian Brown Bat
          Brazilian Brown Bat
          The Brazilian Brown Bat, Eptesicus brasiliensis, is a bat species from South and Central America....

           Eptesicus brasiliensis LC
        • Diminutive Serotine
          Diminutive Serotine
          The Diminutive Serotine, Eptesicus diminutus, is a bat species from South America.It is found in Argentina, Brazil, Paraguay, Uruguay, and Venezuela.-References:*...

           Eptesicus diminutus DD
        • Argentine Brown Bat
          Argentine Brown Bat
          The Argentine Brown Bat , is a bat species from South and Central America....

           Eptesicus furinalis LC
      • Genus: Histiotus
        Histiotus
        Histiotus is a genus of South American vesper bats. Species within this genus are:*Strange Big-eared Brown Bat *Humboldt Big-eared Brown Bat *Thomas's Big-eared Brown Bat...

        • Thomas's Big-eared Brown Bat Histiotus laephotis NT
        • Big-eared Brown Bat
          Big-eared Brown Bat
          The Big-Eared Brown Bat is a species of vesper bat in the family Vespertilionidae.It can be found in Argentina, Bolivia, Chile, Paraguay and Uruguay.-Source:...

           Histiotus macrotus LC
        • Southern Big-eared Brown Bat Histiotus magellanicus LC
        • Small Big-eared Brown Bat
          Small Big-eared Brown Bat
          The Small Big-Eared Brown Bat is a species of vesper bat in the family Vespertilionidae.It can be found in the following countries: Argentina, Bolivia, possibly Brazil, Chile, Colombia, Ecuador, Peru, Uruguay, and Venezuela....

           Histiotus montanus LC
        • Tropical Big-eared Brown Bat
          Tropical Big-eared Brown Bat
          The Tropical Big-eared Brown Bat , is a bat species from South America. It is found in Bolivia, Brazil and Paraguay-References:*...

           Histiotus velatus DD
      • Genus: Lasiurus
        Lasiurus
        Lasiurus is the genus comprising hairy-tailed bats. The name Lasiurus is derived from the Greek lasios and oura . It contains some of the most attractive bats in the whole continent of North America including such species as the red bat, L. borealis, and the hoary bat, L. cinereus...

        • Desert red bat
          Desert red bat
          The desert red bat, also known as the Western Red Bat, is one of many species of bats. This particular one is from the Vespertilionidae family which is the largest family. It includes 35 genera and 318 species...

           Lasiurus blossevillii LC
        • Hoary bat
          Hoary bat
          The hoary bat is a species of bat in the vesper bat family, Vespertilionidae. It occurs throughout most of North America and much of South America, with disjunct populations in the Galapagos and Hawaiian Islands...

           Lasiurus cinereus LC
        • Southern Yellow Bat
          Southern Yellow Bat
          The Southern Yellow Bat , is a species of bat in the vesper bat family, Vespertilionidae. It is native to South, North and Central America, from the Rio Grande Valley of Texas in the United States to Argentina. This species roosts in trees and vegetation...

           Lasiurus ega LC
        • Cinnamon Red Bat Lasiurus varius LC
  • Family: Molossidae
    • Genus: Cynomops
      Cynomops
      Cynomops is a genus of Central and South American bats in the family Molossidae. It has sometimes been considered a subgenus of Molossops...

      • Cinnamon Dog-faced Bat
        Cinnamon Dog-faced Bat
        The Cinnamon Dog-faced Bat , is a bat species from South America. It is found in Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Peru, Paraguay, Suriname and Venezuela....

         Cynomops abrasus DD
      • Para Dog-faced Bat
        Para Dog-faced Bat
        The Para Dog-faced Bat , is a bat species from South America....

         Cynomops paranus DD
      • Southern Dog-faced Bat
        Southern Dog-faced Bat
        The Southern Dog-faced Bat , is a bat species from South and Central America....

         Cynomops planirostris LC
    • Genus: Eumops
      Eumops
      Eumops is a genus of bats in the family Molossidae.-Reference:* Baker, R.J.; McDonough, M.M.; Swier, V.J.; Larsen, P.A.; Carrera, J.P.; Ammerman, L.K. 2009. New species of bonneted bat, genus Eumops from the lowlands of western Ecuador and Peru. Acta Chiropterologica 11 : 1-13....

      • Black Bonneted Bat
        Black Bonneted Bat
        The Black Bonneted Bat , is a bat species from South and Central America.-References:* Barquez, R., Rodriguez, B., Miller, B. & Diaz, M. 2008. . Downloaded on 3 March 2009.*...

         Eumops auripendulus LC
      • Dwarf Bonneted Bat
        Dwarf Bonneted Bat
        The Dwarf Bonneted Bat , is a bat species from South and Central America.-References:* Chiroptera Specialist Group 1996. . Downloaded on 26 October 2008.*...

         Eumops bonariensis LC
      • Big Bonneted Bat
        Big Bonneted Bat
        The Big Bonneted Bat is a species of bat in the family Molossidae. It is found in Argentina, Colombia, Paraguay, and Venezuela.-References:* Chiroptera Specialist Group 1996. . Downloaded on 30 July 2007....

         Eumops dabbenei LC
      • Wagner's Bonneted Bat
        Wagner's Bonneted Bat
        Wagner's Bonneted Bat , is a species of bat in the family Molossidae. it is found in the Americas from Argentina and Peru north to Mexico, Cuba and Florida in the United States....

         Eumops glaucinus LC
      • Patagonian Bonneted Bat
        Patagonian Bonneted Bat
        The Patagonian Bonneted Bat is a species of bat found in Argentina, Bolivia and Paraguay....

         Eumops patagonicus LC
      • Western mastiff bat
        Western mastiff bat
        The western mastiff bat , also known as the western bonneted bat, the greater mastiff bat, or the greater bonneted bat, is a member of the free-tailed bat family, Molossidae. It is found in the Western United States, Mexico and South America, and is the largest bat native to North America...

         Eumops perotis LC
    • Genus: Molossops
      Molossops
      Molossops is a genus of bat in the family Molossidae.The four member species are found in nearly every country of South America, with the Dwarf Dog-faced Bat being found in the most countries.It contains the following species:...

      • Rufous Dog-faced Bat
        Rufous Dog-faced Bat
        The Rufous Dog-faced Bat , is a bat species from South America. It is found in Argentina, Brazil, Colombia, Guyana, Peru and Suriname....

         Molossops neglectus DD
      • Dwarf Dog-faced Bat
        Dwarf Dog-faced Bat
        The Dwarf Dog-faced Bat , is a bat species from South America. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Paraguay and Uruguay....

         Molossops temminckii LC
    • Genus: Molossus
      Molossus (genus)
      Molossus is a genus of bats. The genus contains ten species with a New World distribution from Mexico in the north to northern Argentina at its most southerly limit...

      • Bonda Mastiff Bat
        Bonda Mastiff Bat
        The Bonda Mastiff Bat or Thomas's mastiff bat , is a bat species from South and Central America.-References:* Chiroptera Specialist Group 1996. . Downloaded on 26 October 2008.*...

         Molossus currentium LC
      • Velvety Free-tailed Bat
        Velvety Free-tailed Bat
        The Velvety Free-tailed Bat or Pallas's Mastiff Bat , is a bat species in the family Molossidae. It occurs in the Americas from Argentina north to Cuba and Mexico and also the Florida Keys in the United States....

         Molossus molossus LC
      • Black Mastiff Bat
        Black Mastiff Bat
        The Black Mastiff Bat , is a bat species from South and Central America.-References:* Barquez, R., Rodriguez, B., Miller, B. & Diaz, M. 2008. . Downloaded on 03 March 2009.*-External links:*...

         Molossus rufus LC
    • Genus: Nyctinomops
      Nyctinomops
      Nyctinomops is a genus of bats in the family Molossidae....

      • Broad-eared Bat
        Broad-eared Bat
        The Broad-eared Bat , is a bat species from South and Central America.-References:* Chiroptera Specialist Group 1996. . Downloaded on 26 October 2008.*-External links:...

         Nyctinomops laticaudatus LC
      • Big Free-tailed Bat
        Big Free-tailed Bat
        The Big Free-tailed Bat is a bat species found in South, North and Central America. They have a wingspan of 435 mm and an average length of 140 mm. This bat frequents rocky or canyon country where it roosts in crevices. This migratory species is a swift, powerful flier, and occasional individuals...

         Nyctinomops macrotis LC
    • Genus: Promops
      Promops
      Promops is a genus of molossid bats.-Species:Promops is a genus of molossid bats.-Species:Promops is a genus of molossid bats.-Species::Promops centralis - big crested mastiff bat:Promops nasutus - brown mastiff bat...

      • Big Crested Mastiff Bat
        Big Crested Mastiff Bat
        The Big Crested Mastiff Bat , is a bat species from South and Central America.-References:* Chiroptera Specialist Group 1996. . Downloaded on 26 October 2008.*...

         Promops centralis LC
      • Brown Mastiff Bat
        Brown Mastiff Bat
        The Brown Mastiff Bat , is a South American bat species, found in Venezuela, Trinidad, Guyana, Surinam, Brazil, Ecuador, Peru, Bolivia, Paraguay, and northern Argentina.-References:*...

         Promops nasutus LC
    • Genus: Tadarida
      Tadarida
      The genus Tadarida has ten or more species of bats divided into two subgenera, with the first of these containing seven species spread across the Old World...

      • Mexican Free-tailed Bat
        Mexican Free-tailed Bat
        The Mexican free-tailed bat , also known as the Brazilian free-tailed bat, is a medium-sized bat that is native to the Americas and is widely regarded as one of the most abundant mammals in North America...

         Tadarida brasiliensis LC
  • Family: Phyllostomidae
    • Subfamily: Phyllostominae
      Phyllostominae
      Phyllostominae is a subfamily of bats.-List of species:Subfamily Phyllostominae* Tribe Micronycterini**Genus: Glyphonycteris***Behn's Bat, Glyphonycteris behnii***Davies's Big-eared Bat, Glyphonycteris daviesi...

      • Genus: Chrotopterus
        • Big-eared Wooly Bat
          Big-eared Wooly Bat
          The Big-eared Woolly Bat , Chrotopterus auritus, is a bat species native to Central and South America, where it is found from southern Mexico to northern Argentina, Paraguay and southern Brazil...

           Chrotopterus auritus LC
      • Genus: Macrophyllum
        • Long-legged Bat
          Long-legged Bat
          The Long-legged Bat, Macrophyllum macrophyllum, is a bat species from South and Central America. It is monotypic in its genus.It hunts close over the water surfaces of lakes and slowly flowing streams, where it seizes insects right above or directly off the surface in a manner similar to Noctilio...

           Macrophyllum macrophyllum LC
      • Genus: Phyllostomus
        Phyllostomus
        Phyllostomus is a genus of leaf-nosed bat. It contains four described species.-Species:Genus Phyllostomus - Spear-nosed Bats*Pale Spear-nosed Bat, Phyllostomus discolor*Lesser Spear-nosed Bat, Phyllostomus elongatus...

        • Pale Spear-nosed Bat
          Pale Spear-nosed Bat
          The Pale Spear-nosed Bat, Phyllostomus discolor, is a bat species from South and Central America. It ranges from southern Mexico to Peru, Bolivia, Paraguay, northern Argentina and southeast Brazil.It eats flowers and fruit as well as insects...

           Phyllostomus discolor LC
      • Genus: Tonatia
        Tonatia
        Tonatia is a genus of South and Central American phyllostomid bats.-Species:Tonatia is a genus of South and Central American phyllostomid bats.-Species:Tonatia is a genus of South and Central American phyllostomid bats....

        • Greater Round-eared Bat
          Greater Round-eared Bat
          The Greater Round-eared Bat, Tonatia bidens, is a bat species from South America. It is found in northeastern and southern Brazil, northern Argentina, Paraguay and Bolivia. The species feeds on fruit as well as hunting small birds. Once caught birds are taken to a shelter and consumed.-References:*...

           Tonatia bidens DD
    • Subfamily: Glossophaginae
      Glossophaginae
      Glossophaginae is a subfamily of leaf-nosed bats.-List of species:Subfamily: Glossophaginae* Tribe Glossophagini**Genus: Anoura - Geoffroy's Long-nosed Bats***Anoura aequatoris***Cadena's Tailless Bat, Anoura cadenai...

      • Genus: Anoura
        Anoura
        Anoura is a genus of leaf-nosed bats from Central and South America.-Species:*Anoura aequatoris*Cadena's Tailless Bat, Anoura cadenai*Anoura canishina*Tailed Tailless Bat, Anoura caudifer*Handley's Tailless Bat, Anoura cultrata...

        • Tailed Tailless Bat
          Tailed Tailless Bat
          The tailed tailless bat, Anoura caudifer, is a species of leaf-nosed bat from South America.-Name:The scientific name of this species is variously given as either A. caudifer or A. caudifera, with scientists having argued for both names on the basis of Latin grammar and of the ICZN rules on the...

           Anoura caudifer LC
      • Genus: Glossophaga
        Glossophaga
        Glossophaga is a genus of bats in the leaf-nosed bat family, Phyllostomidae. Members of the genus are native to the American Neotropics.-Species:*G. commissarisi : Commissaris's Long-tongued Bat - Central and South America...

        • Pallas's Long-tongued Bat
          Pallas's Long-tongued Bat
          Pallas's Long-tongued Bat, Glossophaga soricina, is a South and Central American bat. It has the fastest metabolism ever recorded in a mammal, similar to those of hummingbirds...

           Glossophaga soricina LC
    • Subfamily: Carolliinae
      Carolliinae
      Carolliinae is a subfamily of bats.-Classification:Subfamily Carolliinae*Genus: Carollia - Short-tailed Leaf-nosed Bats**Benkeith's short-tailed Bat, Carollia benkeithi**Silky Short-tailed Bat, Carollia brevicauda...

      • Genus: Carollia
        Carollia
        Carollia is a genus of bats often referred to as the short-tailed fruit bats. Along with the genus, Rhinophylla, Carollia makes up the subfamily Carolliinae of family Phyllostomidae, the leaf-nosed bats. Currently, nine species of Carollia are recognized, with a number having been described since...

        • Seba's Short-tailed Bat
          Seba's Short-tailed Bat
          Seba's Short-tailed Bat, Carollia perspicillata, is a common and widespread bat species from South and Central America.C. perspicillata dwells in both moist evergreen and dry deciduous forests, usually below 1,000 meters altitude, typically roosting in groups of 10-100 bats in caves, hollow trees,...

           Carollia perspicillata LC
    • Subfamily: Stenodermatinae
      Stenodermatinae
      Stenodermatinae is a large subfamily of bats in the family Phyllostomidae.-List of species:Subfamily Stenodermatinae*Genus: Ametrida**Little White-shouldered Bat, Ametrida centurio*Genus: Ardops**Tree Bat, Ardops nichollsi...

      • Genus: Artibeus
        Artibeus
        The Neotropical fruit bats are a genus of bats within the subfamily Stenodermatinae. The genus consists of 21 species, which are native to Central and South America, as well as parts of the Caribbean.-Description:...

        • Fringed Fruit-eating Bat
          Fringed Fruit-eating Bat
          The Fringed Fruit-eating Bat , is a bat species from South America. It is found in Argentina, Brazil and Paraguay....

           Artibeus fimbriatus LC
        • Great Fruit-eating Bat
          Great Fruit-eating Bat
          The Great Fruit-eating Bat , is a bat species in the family Phyllostomidae from South and Central America. It is found from Mexico to Brazil and Argentina, as well as in Barbados, Grenada, Martinique, Saint Lucia, Saint Vincent and the Grenadines and Trinidad and Tobago.They are 10.5 g at birth and...

           Artibeus lituratus LC
        • Flat-faced Fruit-eating Bat
          Flat-faced Fruit-eating Bat
          The Flat-faced Fruit-eating Bat is a species of bat in the family Phyllostomidae. It is found in Argentina, Brazil, Colombia, Ecuador, Paraguay, and Venezuela.-References:...

           Artibeus planirostris LC
      • Genus: Platyrrhinus
        Platyrrhinus
        Platyrrhinus is a genus of leaf-nosed bats.-Species:Genus Platyrrhinus*Alberico's Broad-nosed Bat, Platyrrhinus albericoi*Platyrrhinus angustirostris*Platyrrhinus aquilus...

        • White-lined Broad-nosed Bat
          White-lined Broad-nosed Bat
          The White-lined Broad-nosed Bat, Platyrrhinus lineatus, is a bat species from South America. It is found in southern and eastern Brazil, Paraguay, Uruguay, northern Argentina, Bolivia, Peru, Ecuador, Colombia, French Guyana and Suriname....

           Platyrrhinus lineatus LC
      • Genus: Pygoderma
        • Ipanema Bat
          Ipanema Bat
          The Ipanema Bat, Pygoderma bilabiatum, is a bat species from South America. It is found in northern Argentina, Bolivia, southerneastern Brazil and Paraguay. It is monotypic within its genus.-References:*...

           Pygoderma bilabiatum LC
      • Genus: Sturnira
        Sturnira
        Sturnira is a genus of bat in the family Phyllostomidae.It contains the following species:* Aratathomas's Yellow-shouldered Bat, Sturnira aratathomasi* Bidentate Yellow-shouldered Bat, Sturnira bidens...

        • Hairy Yellow-shouldered Bat
          Hairy Yellow-shouldered Bat
          The Hairy Yellow-shouldered Bat is a species of bat in the family Phyllostomidae. It is found in Argentina, Bolivia, Colombia, Ecuador, Peru, and Venezuela.-References:...

           Sturnira erythromos LC
        • Little Yellow-shouldered Bat
          Little Yellow-shouldered Bat
          The Little Yellow-shouldered Bat, Sturnira lilium, is a bat species from South and Central America. The Little Yellow-shouldered Bat is a frugivor.-References:* Chiroptera Specialist Group 1996. . Downloaded on 26 October 2008.*...

           Sturnira lilium LC
        • Tschudi's Yellow-shouldered Bat Sturnira oporaphilum NT
      • Genus: Vampyressa
        Vampyressa
        Vampyressa is a genus of bat in the family Phyllostomidae.It contains the following species:* Bidentate Yellow-eared Bat * Brock's Yellow-eared Bat * Melissa's Yellow-eared Bat...

        • Southern Little Yellow-eared Bat
          Southern Little Yellow-eared Bat
          The Southern Little Yellow-eared Bat, Vampyressa pusilla, is a bat species from South America. It is found in Brazil, Argentina and Paraguay.-References:* Barquez, R. & Diaz, M. 2008. . Downloaded on 28 February 2009.*...

           Vampyressa pusilla DD
    • Subfamily: Desmodontinae
      • Genus: Desmodus
        Desmodus
        Desmodus is a genus of bats often referred to as the vampire bats. Along with the genera, Diaemus and Diphylla, Desmodus makes up the subfamily Desmodontinae of family Phyllostomidae, the vampire bats.Genus Desmodus - vampire bats...

        • Common Vampire Bat
          Common Vampire Bat
          The Common Vampire Bat is a small leaf-nosed bat native to the Americas. It is one of three extant species of vampire bat, the other two being the Hairy-legged Vampire Bat and the White-winged Vampire Bat. Along with them, it is the only parasitic mammal. It mainly feeds on the blood of livestock...

           Desmodus rotundus LC
      • Genus: Diaemus
        • White-winged Vampire Bat
          White-winged Vampire Bat
          The White-winged Vampire Bat is a species of vampire bat. It is the only member of the genus Diaemus. It is found from Mexico to southern Argentina and is present on the islands of Trinidad and Isla Margarita...

           Diaemus youngi LC

Order: Carnivora
Carnivora
The diverse order Carnivora |Latin]] carō "flesh", + vorāre "to devour") includes over 260 species of placental mammals. Its members are formally referred to as carnivorans, while the word "carnivore" can refer to any meat-eating animal...

 (carnivorans)

----
There are over 260 species of carnivorans, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition.
  • Suborder: Feliformia
    Feliformia
    The Feliformia are a suborder within the order Carnivora and includes cats , hyenas, mongooses, civets and related taxa. The other suborder of Carnivora is Caniformia...

    • Family: Felidae
      Felidae
      Felidae is the biological family of the cats; a member of this family is called a felid. Felids are the strictest carnivores of the thirteen terrestrial families in the order Carnivora, although the three families of marine mammals comprising the superfamily pinnipedia are as carnivorous as the...

       (cats)
      • Subfamily: Felinae
        Felinae
        Felinae is a subfamily of the family Felidae which includes the genera and species listed below. Most are small to medium-sized cats, although the group does include some larger animals, such as the Cougar and Cheetah....

        • Genus: Leopardus
          Leopardus
          Leopardus is a genus consisting of small spotted cats mostly native to Middle and South America. Very few range into the southern United States. The genus is considered the oldest branch of the part of the cat family to cross into the Americas, followed by the genera Lynx and Puma...

          • Colocolo
            Colocolo
            Colocolo may refer to:*Colocolo , a Mapuche tribal chief.*Colo Colo creature of the Mapuche mythology.*Colocolo , a South American cat native to Chile.*Colo-Colo, a Chilean football team....

             Leopardus colocolo NT
          • Geoffroy's Cat
            Geoffroy's Cat
            Geoffroy's Cat is a wild cat in the southern and central regions of South America. It is about the size of a domestic cat. While the species is relatively common in many areas, it is considered to be "Near Threatened" by IUCN because of concern over land-use changes in the regions where it lives...

             Leopardus geoffroyi NT
          • Kodkod
            Kodkod
            The Kodkod , also called Guiña, is the smallest cat in the Americas and also has the smallest distribution, being found primarily in central and southern Chile and marginally in adjoining areas of Argentina...

             Leopardus guigna VU
          • Andean Mountain Cat Leopardus jacobita EN
          • Ocelot
            Ocelot
            The ocelot , pronounced /ˈɒsəˌlɒt/, also known as the dwarf leopard or McKenney's wildcat is a wild cat distributed over South and Central America and Mexico, but has been reported as far north as Texas and in Trinidad, in the Caribbean...

             Leopardus pardalis LC
          • Oncilla Leopardus tigrinus VU
          • Margay
            Margay
            The Margay is a spotted cat native to Middle and South America. Named for Prince Maximilian of Wied-Neuwied, it is a solitary and nocturnal animal that prefers remote sections of the rainforest. Although it was once believed to be vulnerable to extinction, the IUCN now lists it as "Near Threatened"...

             Leopardus wiedii NT
        • Genus: Puma
          Puma (genus)
          Puma is a genus in Felidae that contains the cougar and the jaguarundi, and may also include several poorly known Old World fossil representatives .-Species:*Puma concolor – CougarPuma pardoides Puma is a genus in Felidae that contains the cougar (also known as the puma, among other names)...

          • Cougar Puma concolor LC
          • Jaguarundi
            Jaguarundi
            The jaguarundi is a small-sized wild cat native to Central and South America. In 2002, the IUCN classified the jaguarundi as Least Concern as it is likely that no conservation units, with the probable exception of the mega-reserves of the Amazon basin could sustain long-term viable populations. It...

             Puma yagouaroundi LC
      • Subfamily: Pantherinae
        Pantherinae
        Pantherinae is the subfamily of the family Felidae, which includes the genera Panthera, Uncia and Neofelis.The divergence of Pantherinae from Felinae has been ranked between six and ten million years ago. DNA analysis suggests that the snow leopard Uncia uncia is basal to the entire Pantherinae and...

        • Genus: Panthera
          Panthera
          Panthera is a genus of the family Felidae , which contains four well-known living species: the tiger, the lion, the jaguar, and the leopard. The genus comprises about half of the Pantherinae subfamily, the big cats...

          • Jaguar
            Jaguar
            The jaguar is a big cat, a feline in the Panthera genus, and is the only Panthera species found in the Americas. The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Western Hemisphere. The jaguar's present range extends from Southern United States and Mexico...

             Panthera onca NT
  • Suborder: Caniformia
    Caniformia
    Caniformia, or Canoidea , is a suborder within the order Carnivora. They typically possess a long snout and non-retractile claws . The Pinnipedia evolved from caniform ancestors and are accordingly assigned to this group...

    • Family: Canidae
      Canidae
      Canidae is the biological family of carnivorous and omnivorous mammals that includes wolves, foxes, jackals, coyotes, and domestic dogs. A member of this family is called a canid . The Canidae family is divided into two tribes: Canini and Vulpini...

       (dogs, foxes)
      • Genus: Lycalopex
        • Culpeo
          Culpeo
          The culpeo , sometimes known as the culpeo zorro or Andean fox , is a South American species of wild dog. It is the second largest native canid on the continent after the maned wolf. In its appearance it bears many similarities to the widely recognized red fox...

           Lycalopex culpaeus LC
        • South American Gray Fox Lycalopex griseus LC
        • Pampas Fox
          Pampas Fox
          The Pampas fox , also known as graxaim, sorro, Azara's fox, or Azara's zorro, is a medium sized zorro or "false" fox native to South American pampas and its range is through central South America in Argentina, Uruguay, Paraguay and Brazil...

           Lycalopex gymnocercus LC
      • Genus: Cerdocyon
        • Crab-eating Fox
          Crab-eating Fox
          The crab-eating fox , also known as the forest fox, wood fox, and the common fox, is an extant species of medium-sized canid endemic to the central part of South America and which appeared during the Pliocene epoch...

           Cerdocyon thous LC
      • Genus: Speothos
        Speothos
        Speothos is a genus of canid found in Central and South America. The genus includes the living Bush Dog, Speothos venaticus, as well as an extinct Pleistocene species, Speothos pacivorus. Surprisingly, the fossil species was identified and named prior to the discovery of the extant species, with...

        • Bush Dog
          Bush Dog
          The bush dog is a canid found in Central and South America, including Panama, Colombia, Venezuela, Bolivia, Peru , Ecuador, the Guianas, Paraguay, northeast Argentina and Brazil...

           Speothos venaticus NT
      • Genus: Chrysocyon
        • Maned Wolf
          Maned Wolf
          The maned wolf is the largest canid of South America, resembling a large fox with reddish fur.This mammal is found in open and semi-open habitats, especially grasslands with scattered bushes and trees, in south, central-west and south-eastern Brazil The maned wolf (Chrysocyon brachyurus) is the...

           Chrysocyon brachyurus NT
    • Family: Ursidae (bears)
      • Genus: Tremarctos
        Tremarctos
        Tremarctos is a genus of the family Ursidae, subfamily Tremarctinae endemic to Americas from the Pliocene to recent. The northern species, the Florida short-faced bear was extinct 11 000 years ago...

        • Spectacled Bear
          Spectacled Bear
          The spectacled bear , also known as the Andean bear and locally as ukuko, jukumari or ucumari, is the last remaining short-faced bear and the closest living relative to the Florida spectacled bear and short-faced bears of the Middle Pleistocene to Late Pleistocene age.The spectacled bear is a...

           Tremarctos ornatus VU
    • Family: Procyonidae
      Procyonidae
      Procyonidae is a New World family of the order Carnivora. It includes the raccoons, coatis, kinkajous, olingos, ringtails and cacomistles. Procyonids inhabit a wide range of environments, and are generally omnivorous.-Characteristics:...

       (raccoons)
      • Genus: Procyon
        Procyon (genus)
        Procyon is a genus of nocturnal mammals, comprising three species commonly known as raccoons, in the family Procyonidae. The most familiar species, the common raccoon , is often known simply as "the" raccoon, as the two other raccoon species in the genus are native only to the tropics and are...

        • Crab-eating Raccoon
          Crab-eating raccoon
          The Crab-eating Raccoon is a species of raccoon native to marshy and jungle areas of Central and South America . It is found from Costa Rica south through most areas of South America east of the Andes down to northern Argentina and Uruguay...

           Procyon cancrivorus LC
      • Genus: Nasua
        Nasua
        Nasua is a genus within the Raccoon family, Procyonidae. The three species within the genus Nasua are generally referred to as coatis. Two additional species of coatis, commonly known as mountain coatis, are placed in the genus Nasuella...

        • South American Coati
          South American Coati
          The South American Coati, or Ring-tailed Coati , is a species of coati from South America. In Brazilian Portuguese it is known as quati. It is native to Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Paraguay, Peru, Surinam, Uruguay and Venezuela. It is the southern replacement of its very...

           Nasua nasua LC
    • Family: Mustelidae
      Mustelidae
      Mustelidae , commonly referred to as the weasel family, are a family of carnivorous mammals. Mustelids are diverse and the largest family in the order Carnivora, at least partly because in the past it has been a catch-all category for many early or poorly differentiated taxa...

       (mustelids)
      • Genus: Eira
        Eira
        Eira is a neighborhood in Helsinki, the capital of Finland.The district dates back to the early 20th century and received its name after Eira Hospital in the neighboring district of Ullanlinna, which in turn took its name from Eira Hospital in Stockholm, which was named after Eir, the old...

        • Tayra
          Tayra
          The tayra , also known as the Tolomuco or Perico ligero in Central America, and San Hol or viejo de monte in the Yucatan Peninsula is an omnivorous animal from the weasel family Mustelidae. It is the only species in the genus Eira...

           Eira barbara LC
      • Genus: Galictis
        Galictis
        The grison, also known as the South American glutton, is a neotropical mustelid of South America. Comprising the genus Galictis, it is divided into two species: the greater grison , which is found widely in South America, through Central America to southern Mexico; and the lesser grison , which is...

        • Lesser Grison
          Lesser Grison
          The lesser grison , Galictis cuja, is a mammal species of the ferret family Mustelidae from South America. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, Peru, and Uruguay....

           Galictis cuja LC
      • Genus: Lyncodon
        • Patagonian Weasel
          Patagonian Weasel
          The Patagonian Weasel is a small mustelid that is the only member of the genus Lyncodon. Its geographic range is the Pampas of western Argentina and sections of Chile...

           Lyncodon patagonicus DD
      • Genus: Lontra
        Lontra
        Lontra is a genus of otters from the American continent.The genus comprises four species:*North American River Otter *Southern River Otter *Neotropical Otter...

        • Marine Otter
          Marine Otter
          The marine otter, Lontra felina, is a rare and poorly-known South American mammal of the weasel family . The scientific name means "otter cat", and in Spanish the marine otter is also often referred to as : "marine cat"...

           Lontra felina EN
        • Neotropical River Otter
          Neotropical River Otter
          The Neotropical Otter , Lontra longicaudis, is an otter species found in Central America, South America and the island of Trinidad....

           Lontra longicaudis DD
        • Southern River Otter
          Southern River Otter
          The Southern river otter is a species of otter that lives in Chile and Argentina. Although called a "river otter", it inhabits both marine and freshwater environments....

           Lontra provocax EN
      • Genus: Pteronura
        • Giant Otter
          Giant Otter
          The giant otter is a South American carnivorous mammal. It is the longest member of the Mustelidae, or weasel family, a globally successful group of predators. Unusually for a mustelid, the giant otter is a social species, with family groups typically supporting three to eight members...

           Pteronura brasiliensis EN
    • Family: Mephitidae
      • Genus: Conepatus
        • Molina's Hog-nosed Skunk
          Molina's Hog-nosed Skunk
          Molina's hog-nosed skunk, also called the Andes Skunk , is a skunk species from South America. It is found in Argentina, Bolivia, Brazil, Chile, Peru and Uruguay in heights up to 5000m.-References:**The Andes: A Trekking Guide...

           Conepatus chinga LC
        • Humboldt's Hog-nosed Skunk
          Humboldt's Hog-nosed Skunk
          Humboldt's hog-nosed skunk, also known as the Patagonian hog-nosed skunk is a type of hog-nosed skunk indigenous to the open grassy areas in the Patagonian regions of Argentina and Chile.- Appearance :...

           Conepatus humboldtii LC
    • Family: Otariidae (eared seals, sealions)
      • Genus: Arctocephalus
        Arctocephalus
        The genus Arctocephalus consists of eight of the nine species of fur seal. For details see the fur seal article, or the individual species articles.-Taxonomy:* SUBORDER PINNIPEDIA* Family Otariidae...

        • South American Fur Seal
          South American Fur Seal
          The South American Fur Seal is a species of fur seal that breeds on the coasts of Chile and Argentina. The total population is around 250,000....

           Arctocephalus australis LC
        • Subantarctic Fur Seal
          Subantarctic Fur Seal
          The subantarctic fur seal is a fur seal found in the southern parts of the Indian and Atlantic Oceans. It was first described by Gray in 1872 from a specimen recovered in northern Australia—hence the inappropriate tropicalis specific name.- Description :The subantarctic fur seal is...

           Arctocephalus tropicalis LC
      • Genus: Otaria
        • South American Sea Lion
          South American Sea Lion
          The South American sea lion , also called the southern sea lion and the Patagonian sea lion, is a sea lion found on the Chilean, Peruvian, Uruguayan, Argentine and Southern Brazilian coasts. It is the only member of the genus Otaria...

           Otaria flavescens LC
    • Family: Phocidae (earless seals)
      • Genus: Leptonychotes
        • Weddell Seal
          Weddell Seal
          The Weddell seal , is a relatively large and abundant true seal with a circumpolar distribution surrounding Antarctica. Weddell seals have the most southerly distribution of any mammal, with a habitat that extends as far south as McMurdo Sound...

           Leptonychotes weddellii LC
      • Genus: Lobodon
        • Crabeater Seal
          Crabeater Seal
          The crabeater seal, Lobodon carcinophagus, is a true seal with a circumpolar distribution around the coast of Antarctica. They are medium to large-sized , relatively slender and pale-colored, found primarily on the free floating pack ice that extends seasonally out from the Antarctic coast, which...

           Lobodon carcinophaga LC
      • Genus: Mirounga
        • Southern Elephant Seal
          Southern Elephant Seal
          The Southern Elephant Seal is one of the two extant species of elephant seal. It is both the most massive pinniped and member of the order Carnivora living today...

           Mirounga leonina LC

Order: Perissodactyla (odd-toed ungulates)

----

The odd-toed ungulates are browsing and grazing
Grazing
Grazing generally describes a type of feeding, in which a herbivore feeds on plants , and also on other multicellular autotrophs...

 mammals. They are usually large to very large, and have relatively simple stomachs and a large middle toe.
  • Family: Tapiridae (tapirs)
    • Genus: Tapirus
      • Lowland Tapir Tapirus terrestris VU

Order: Artiodactyla (even-toed ungulates)

----
The even-toed ungulates are ungulate
Ungulate
Ungulates are several groups of mammals, most of which use the tips of their toes, usually hoofed, to sustain their whole body weight while moving. They make up several orders of mammals, of which six to eight survive...

s whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in perissodactyls. There are about 220 artiodactyl species, including many that are of great economic importance to human
Human
Humans are the only living species in the Homo genus...

s.
  • Family: Tayassuidae (peccaries)
    • Genus: Catagonus
      • Chacoan Peccary
        Chacoan peccary
        The Chacoan peccary or Tagua is a species of peccary found in the Gran Chaco of Paraguay, Bolivia and Argentina. About 3000 exist in the world...

         Catagonus wagneri EN
    • Genus: Pecari
      Pecari
      Pecari is a genus of mammals in the peccary family, Tayassuidae. The genus was monotypic until the description of P. maximus in 2007, but the scientific evidence for its status as a species separate from P...

      • Collared Peccary
        Collared Peccary
        The collared peccary is a species of mammal in the family Tayassuidae that is found in North, Central, and South America. They are commonly referred to as javelina, saíno or báquiro, although these terms are also used to describe other species in the family...

         Pecari tajacu LC
    • Genus: Tayassu
      • White-lipped Peccary
        White-lipped Peccary
        The White-lipped Peccary, Tayassu pecari, is a peccary species found in Central and South America, living in rainforest, dry forest and chaco scrub. It is monotypic within the genus Tayassu....

         Tayassu pecari NT
  • Family: Camelidae (camels, llamas)
    • Genus: Lama
      Lama
      Lama is a title for a Tibetan teacher of the Dharma. The name is similar to the Sanskrit term guru .Historically, the term was used for venerated spiritual masters or heads of monasteries...

      • Guanaco Lama guanicoe LC
    • Genus: Vicugna
      Vicugna
      Vicugna is a genus containing two South American camelids, the vicuña and the alpaca.Previously thought to be descended from the llama, the alpaca was reclassified as part of Vicugna after a 2001 paper on alpaca DNA. The paper showed that the alpaca is descended from the vicuña, not the...

      • Vicuña
        Vicuña
        The vicuña or vicugna is one of two wild South American camelids, along with the guanaco, which live in the high alpine areas of the Andes. It is a relative of the llama, and is now believed to share a wild ancestor with domesticated alpacas, which are raised for their fibre...

         Vicugna vicugna LC
  • Family: Cervidae (deer)
    • Subfamily: Capreolinae
      Capreolinae
      Capreolinae, also known as Odocoileinae or the New World deer , is a subfamily of deer...

      • Genus: Blastocerus
        • Marsh deer
          Marsh Deer
          The Marsh Deer, Blastocerus dichotomus , is the largest deer species from South America reaching a length of and a height of at the rump. It is found in Argentina, Bolivia, Brazil, Uruguay and Paraguay...

           Blastocerus dichotomus VU
      • Genus: Hippocamelus
        • Taruca
          Taruca
          The Taruca , or North Andean Deer, is a species of deer that ranges across the Andes of Peru and Bolivia and the north of Chile and the northwest of Argentina...

           Hippocamelus antisensis VU
        • South Andean Deer
          South Andean Deer
          The South Andean Deer, Hippocamelus bisulcus, also known as the Huemul , is an endangered species of deer native to the mountains of Argentina and Chile. One of two mid-sized deer of the Hippocamelus genus, the South Andean Deer ranges across the high mountainsides and cold valleys of the Andes...

           Hippocamelus bisulcus EN
      • Genus: Mazama
        Mazama
        Mazama may refer to:* Mazama, Washington , a small village nestled in the Methow Valley in the eastern part of Washington* Mazama, the genus name of the Brocket deer...

        • Red Brocket
          Red Brocket
          The Red Brocket , is a species of brocket deer from forests in South America, ranging from northern Argentina to Colombia and the Guianas...

           Mazama americana DD
        • Gray Brocket
          Gray Brocket
          The Gray Brocket , also known as the brown brocket, is a species of brocket deer from northern Argentina, Bolivia, eastern and southern Brazil, Paraguay and Uruguay. It formerly included the Amazonian Brown Brocket and sometimes also the Yucatan Brown Brocket as subspecies...

           Mazama gouazoupira LC
        • Pygmy Brocket
          Pygmy Brocket
          The Pygmy Brocket, Mazama nana, is a brocket deer species from South America. It is found in Argentina, southern Brazil and Paraguay. It is a small deer with short legs, weighing . It is reddish-brown in color....

           Mazama nana DD
      • Genus: Ozotoceros
        • Pampas deer
          Pampas Deer
          Pampas deer, Ozotoceros bezoarticus, live in the grasslands of South America at low elevations. They are also known as Venado or Gama. Their habitat includes water and hills, often with winter drought, and grass that is high enough to cover a standing deer...

           Ozotoceros bezoarticus NT
      • Genus: Pudú
        Pudú
        The pudús are two species of South American deer from the genus Pudu; the world's smallest deer. The name is a loanword from Mapudungun the language of the indigenous Mapuche people of southern Chile...

        • Southern Pudú Pudu puda VU

Order: Cetacea
Cetacea
The order Cetacea includes the marine mammals commonly known as whales, dolphins, and porpoises. Cetus is Latin and is used in biological names to mean "whale"; its original meaning, "large sea animal", was more general. It comes from Ancient Greek , meaning "whale" or "any huge fish or sea...

 (whales)

----
The order Cetacea includes whale
Whale
Whale is the common name for various marine mammals of the order Cetacea. The term whale sometimes refers to all cetaceans, but more often it excludes dolphins and porpoises, which belong to suborder Odontoceti . This suborder also includes the sperm whale, killer whale, pilot whale, and beluga...

s, dolphin
Dolphin
Dolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in 17 genera. They vary in size from and , up to and . They are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, mostly eating...

s and porpoise
Porpoise
Porpoises are small cetaceans of the family Phocoenidae; they are related to whales and dolphins. They are distinct from dolphins, although the word "porpoise" has been used to refer to any small dolphin, especially by sailors and fishermen...

s. They are the mammals most fully adapted to aquatic
Aquatic adaptation
Several animal groups have undergone aquatic adaptation, going from being purely terrestrial animals to living at least part of the time in water. The adaptations in early speciation tend to develop as the animal ventures into water in order to find available food. As successive generations spend...

 life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater.
  • Suborder: Mysticeti
    • Family: Balaenidae
      Balaenidae
      Balaenidae is a family of mysticete whales that contains two living genera. Commonly called the right whales as it contains mainly right whale species...

      • Genus: Eubalaena
        • Southern Right Whale
          Southern Right Whale
          The southern right whale is a baleen whale, one of three species classified as right whales belonging to the genus Eubalaena. Like other right whales, the southern right whale is readily distinguished from others by the callosities on its head, a broad back without a dorsal fin, and a long arching...

           Eubalaena australis LC
    • Family: Balaenopteridae
      • Subfamily: Balaenopterinae
        • Genus: Balaenoptera
          Balaenoptera
          Balaenoptera is a genus of Balaenopteridae, the Rorqual whales, and contains eight species. The species Balaenoptera omurai was published in 2003...

          • Common Minke Whale
            Common Minke Whale
            The common minke whale or northern minke whale, , is a species of minke whale within the suborder of baleen whales.-Taxonomy:...

             Balaenoptera acutorostrata LC
          • Antarctic Minke Whale
            Antarctic Minke Whale
            The Antarctic minke whale or southern minke whale , is a species of minke whale within the suborder of baleen whales.-Taxonomy:...

             Balaenoptera bonaerensis DD
          • Sei Whale
            Sei Whale
            The sei whale , Balaenoptera borealis, is a baleen whale, the third-largest rorqual after the blue whale and the fin whale. It inhabits most oceans and adjoining seas, and prefers deep offshore waters. It avoids polar and tropical waters and semi-enclosed bodies of water...

             Balaenoptera borealis EN
          • Bryde's Whale
            Bryde's Whale
            Bryde's whales are baleen whales, one of the "great whales" or rorquals. They prefer tropical and temperate waters over the polar seas that other whales in their family frequent. They are largely coastal rather than pelagic. Bryde's whales are very similar in appearance to sei whales and almost as...

             Balaenoptera edeni DD
          • Blue Whale
            Blue Whale
            The blue whale is a marine mammal belonging to the suborder of baleen whales . At in length and or more in weight, it is the largest known animal to have ever existed....

             Balaenoptera musculus EN
          • Fin Whale
            Fin Whale
            The fin whale , also called the finback whale, razorback, or common rorqual, is a marine mammal belonging to the suborder of baleen whales. It is the second longest whale and the sixth largest living animal after the blue whale, bowhead whale, and right whales, growing to nearly 27 metres long...

             Balaenoptera physalus EN
      • Subfamily: Megapterinae
        • Genus: Megaptera
          • Humpback Whale
            Humpback Whale
            The humpback whale is a species of baleen whale. One of the larger rorqual species, adults range in length from and weigh approximately . The humpback has a distinctive body shape, with unusually long pectoral fins and a knobbly head. It is an acrobatic animal, often breaching and slapping the...

             Megaptera novaeangliae LC
    • Family: Neobalaenidae
      • Genus: Caperea
        • Pygmy Right Whale
          Pygmy Right Whale
          The pygmy right whale is a baleen whale, the sole member of the family Neobalaenidae. First described by John Edward Gray in 1846, it is the smallest of the baleen whales, ranging between and in length and 3,000 and 3,500 kg in mass...

           Caperea marginata DD
  • Suborder: Odontoceti
    • Superfamily: Platanistoidea
      • Family: Pontoporiidae
        • Genus: Pontoporia
          Pontoporia
          Pontoporia may refers to:* The La Plata Dolphin, re: film PONTOPORIA, EL DELFIN DEL PLATA, 30 min. B&W. sound. Camera, editing, director: Eduardo Darino, for ICUR,Instituto de Cine, Universidad de la Republica, Uruguay....

          • La Plata Dolphin
            La Plata Dolphin
            The La Plata Dolphin or Franciscana is found in coastal Atlantic waters of southeastern South America. Taxonomically it is a member of the river dolphin group and the only one that actually lives in the ocean and saltwater estuaries, rather than inhabiting exclusively freshwater...

             Pontoporia blainvillei VU
      • Family: Phocoenidae
        • Genus: Phocoena
          • Spectacled Porpoise
            Spectacled Porpoise
            The Spectacled Porpoise is a rarely seen member of the porpoise family. The species is readily distinguished from other porpoises by a characteristic dark ring around the eyes, which gives the animals their name. This ring is commonly surrounded by a farther lighter ring...

             Phocoena dioptrica DD
          • Burmeister's Porpoise
            Burmeister's Porpoise
            Burmeister's Porpoise is a species of porpoise endemic to the coast of South America. It was first described by Hermann Burmeister, for whom the species is named, in 1865...

             Phocoena spinipinnis DD
      • Family: Physeteridae
        • Genus: Physeter
          • Sperm Whale
            Sperm Whale
            The sperm whale, Physeter macrocephalus, is a marine mammal species, order Cetacea, a toothed whale having the largest brain of any animal. The name comes from the milky-white waxy substance, spermaceti, found in the animal's head. The sperm whale is the only living member of genus Physeter...

             Physeter macrocephalus VU
      • Family: Kogiidae
        • Genus: Kogia
          • Pygmy Sperm Whale
            Pygmy Sperm Whale
            The Pygmy Sperm Whale is one of three species of toothed whale in the sperm whale family. They are not often sighted at sea, and most of what is known about them comes from the examination of stranded specimens.-Taxonomy:...

             Kogia breviceps DD
          • Dwarf Sperm Whale
            Dwarf Sperm Whale
            The Dwarf Sperm Whale is one of three species in the sperm whale family. They are not often sighted at sea. As such, most information is a result of the study of stranded carcasses.-Taxonomy:...

             Kogia sima DD
      • Family: Ziphidae
        • Genus: Ziphius
          • Cuvier's beaked whale
            Cuvier's Beaked Whale
            Cuvier's beaked whale is the most widely distributed of all the beaked whales. It is the only member of the genus Ziphius. Another common name for the species is goose-beaked whale because its head is said to be shaped like the beak of a goose. Georges Cuvier first described it in 1823 from part...

             Ziphius cavirostris LC
        • Genus: Berardius
          • Arnoux's beaked whale Berardius arnuxii DD
        • Genus: Tasmacetus
          • Shepherd's beaked whale
            Shepherd's Beaked Whale
            Shepherd's beaked whale , also commonly called Tasman's beaked whale or simply the Tasman whale, is a cetacean of the family Ziphidae. The whale has been little studied. Only four confirmed at sea sightings have been made and 42 strandings recorded . It was first known to science in 1937, being...

             Tasmacetus shepherdi DD
        • Subfamily: Hyperoodontidae
          • Genus: Hyperoodon
            • Southern bottlenose whale
              Southern bottlenose whale
              The Southern bottlenose whale is a species of whale, in the ziphiid family, one of two members of the Hyperoodon genus. The southern bottlenose has been rarely observed, was seldom hunted, and is probably the most abundant whale in Antarctic waters.-Physical description:It is fairly rotund and...

               Hyperoodon planifrons LC
          • Genus: Mesoplodon
            • Andrews' beaked whale
              Andrews' Beaked Whale
              Andrews' beaked whale , sometimes known as the deep-crest beaked whale or splay-toothed whale, is one of the most poorly known members of a poorly known genus...

               Mesoplodon bowdoini DD
            • Gray's beaked whale
              Gray's Beaked Whale
              Gray's beaked whale , sometimes known as Haast's beaked whale, the Scamperdown whale, or the southern beaked whale, is one of the better-known members of the genus Mesoplodon. The scientific name refers to John Edward Gray, a zoologist at the British Museum. This species is fairly gregarious and...

               Mesoplodon grayi DD
            • Hector's beaked whale
              Hector's Beaked Whale
              Hector's beaked whale , is a small mesoplodont living in the Southern Hemisphere. This whale is named after Sir James Hector, a founder of the colonial museum in Wellington, New Zealand...

               Mesoplodon hectori DD
            • Strap-toothed whale Mesoplodon layardii DD
      • Family: Delphinidae (marine dolphins)
        • Genus: Cephalorhynchus
          Cephalorhynchus
          Cephalorhynchus is a genus in the dolphin family Delphinidae. It consists of four species:*Commerson's Dolphin, Cephalorhyncus commersonii*Chilean Dolphin, Cephalorhyncus eutropia*Heaviside's Dolphin, Cephalorhyncus heavisidii...

          • Commerson's Dolphin
            Commerson's Dolphin
            Commerson's Dolphin is one of four dolphins in the Cephalorhynchus genus. The species has also the common names Skunk Dolphin, Piebald Dolphin and Panda Dolphin...

             Cephalorhynchus commersonii DD
          • Chilean Dolphin
            Chilean Dolphin
            The Chilean Dolphin , also known as the Black Dolphin, is one of four dolphins in the Cephalorhynchus genus. The dolphin is only found off the coast of Chile, it is commonly referred to in the country as Tunina....

             Cephalorhynchus eutropia NT
        • Genus: Tursiops
          • Common Bottlenose Dolphin
            Common Bottlenose Dolphin
            Tursiops truncatus, commonly known as the Common Bottlenose Dolphin, is the most well-known species from the family Delphinidae.Common bottlenose dolphins are the most familiar dolphins due to the wide exposure they receive in captivity in marine parks, dolphinarias, in movies, and television...

             Tursiops truncatus LC
        • Genus: Stenella
          Stenella
          Stenella is a genus of aquatic mammals in Delphinidae, the family informally known as the oceanic dolphins.Currently five species are recognised in this genus:*Pantropical Spotted Dolphin, S. attenuata*Atlantic Spotted Dolphin, S. frontalis...

          • Pantropical Spotted Dolphin
            Pantropical Spotted Dolphin
            The Pantropical Spotted Dolphin is a species of dolphin found in all the world's temperate and tropical oceans. The species was beginning to come under threat due to the killing of millions of individuals in tuna purse seines...

             Stenella attenuata LC
          • Striped Dolphin
            Striped Dolphin
            The Striped Dolphin is an extensively studied dolphin that is found in temperate and tropical waters of all the world's oceans.-Taxonomy:...

             Stenella coeruleoalba LC
          • Spinner Dolphin
            Spinner Dolphin
            The Spinner Dolphin is a small dolphin found in off-shore tropical waters around the world. It is famous for its acrobatic displays in which they spin longitudinally along their axis as they leap through the air.-Taxonomy:...

             Stenella longirostris DD
        • Genus: Delphinus
          Common dolphin
          The common dolphin is the name given to two species of dolphin making up the genus Delphinus.Prior to the mid-1990s, most taxonomists only recognised one species in this genus, the common dolphin Delphinus delphis...

          • Long-beaked Common Dolphin
            Long-beaked Common Dolphin
            The Long-beaked Common Dolphin is a species of common dolphin. It has a more restricted range than the Short-beaked Common Dolphin . It has a disjointed range in coastal areas in tropical and warmer temperate oceans...

             Delphinus capensis DD
          • Short-beaked Common Dolphin
            Short-beaked Common Dolphin
            The short-beaked common dolphin is a species of common dolphin. It has a larger range than the long-beaked common dolphin , occurring throughout warm-temperate and tropical oceans, with the possible exception of the Indian Ocean...

             Delphinus delphis LC
        • Genus: Lagenodelphis
          • Fraser's Dolphin
            Fraser's Dolphin
            Fraser's Dolphin or Sarawak Dolphin is a cetacean in the family Delphinidae found in deep waters in the Pacific Ocean and to a lesser extent in the Indian and Atlantic Oceans.-Taxonomy:...

             Lagenodelphis hosei LC
        • Genus: Lagenorhynchus
          Lagenorhynchus
          Lagenorhynchus is a genus in the order Cetacea, traditionally containing six species:* white-beaked dolphin, Lagenorhynchus albirostris* Atlantic white-sided dolphin, Lagenorhynchus acutus...

          • Peale's Dolphin
            Peale's Dolphin
            Peale's Dolphin is a small dolphin found in the waters around Tierra del Fuego at the foot of South America. It is also commonly known as the Black-chinned Dolphin or even Peale's Black-chinned Dolphin...

             Lagenorhynchus australis DD
          • Hourglass Dolphin
            Hourglass Dolphin
            The hourglass dolphin is a small dolphin in the family Delphinidae that inhabits Antarctic and sub-Antarctic waters....

             Lagenorhynchus cruciger LC
          • Dusky Dolphin
            Dusky Dolphin
            The dusky dolphin is a dolphin found in coastal waters in the Southern Hemisphere. Its specific epithet is Latin for "dark" or "dim". It is very closely genetically related to the Pacific white-sided dolphin, but current scientific consensus is that they are distinct species...

             Lagenorhynchus obscurus DD
        • Genus: Lissodelphis
          • Southern Right Whale Dolphin
            Southern Right Whale Dolphin
            The southern right whale dolphin, Lissodelphis peronii, is a small and slender species of mammal found in cool waters of the southern hemisphere...

             Lissodelphis peronii DD
        • Genus: Grampus
          • Risso's Dolphin
            Risso's Dolphin
            Risso's dolphin is the only species of dolphin in the genus Grampus.-Taxonomy:Risso's dolphin is named after Antoine Risso, whose description formed the basis of the first public description of the animal, by Georges Cuvier, in 1812...

             Grampus griseus LC
        • Genus: Orcinus
          • Orca
            Orca
            The killer whale , commonly referred to as the orca, and less commonly as the blackfish, is a toothed whale belonging to the oceanic dolphin family. Killer whales are found in all oceans, from the frigid Arctic and Antarctic regions to tropical seas...

             Orcinus orca DD
        • Genus: Pseudorca
          • False Killer Whale
            False Killer Whale
            The False Killer Whale is a cetacean, and the third largest member of the oceanic dolphin family . It lives in temperate and tropical waters throughout the world. As its name implies, the False Killer Whale shares characteristics, such as appearance, with the more widely known Orca...

             Pseudorca crassidens DD
        • Genus: Globicephala
          • Long-finned Pilot Whale
            Long-finned Pilot Whale
            The long-finned pilot whale is one of the two species of cetacean in the genus Globicephala. It belongs to the oceanic dolphin family , though its behavior is closer to that of the larger whales.-Description:...

             Globicephala melas DD

Order: Didelphimorphia
Didelphimorphia
Opossums make up the largest order of marsupials in the Western Hemisphere, including 103 or more species in 19 genera. They are also commonly called possums, though that term technically refers to Australian fauna of the suborder Phalangeriformes. The Virginia opossum was the first animal to be...

 (common opossums)

----

Didelphimorphia is the order of common opossums of the Western Hemisphere
Western Hemisphere
The Western Hemisphere or western hemisphere is mainly used as a geographical term for the half of the Earth that lies west of the Prime Meridian and east of the Antimeridian , the other half being called the Eastern Hemisphere.In this sense, the western hemisphere consists of the western portions...

. Opossums probably diverged from the basic South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

n marsupial
Marsupial
Marsupials are an infraclass of mammals, characterized by giving birth to relatively undeveloped young. Close to 70% of the 334 extant species occur in Australia, New Guinea, and nearby islands, with the remaining 100 found in the Americas, primarily in South America, but with thirteen in Central...

s in the late Cretaceous
Cretaceous
The Cretaceous , derived from the Latin "creta" , usually abbreviated K for its German translation Kreide , is a geologic period and system from circa to million years ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the...

 or early Paleocene
Paleocene
The Paleocene or Palaeocene, the "early recent", is a geologic epoch that lasted from about . It is the first epoch of the Palaeogene Period in the modern Cenozoic Era...

.They are small to medium-sized marsupials, about the size of a large house cat
Cat
The cat , also known as the domestic cat or housecat to distinguish it from other felids and felines, is a small, usually furry, domesticated, carnivorous mammal that is valued by humans for its companionship and for its ability to hunt vermin and household pests...

, with a long snout and prehensile tail.
  • Family: Didelphidae (American opossums)
    • Subfamily: Caluromyinae
      Caluromyinae
      Caluromyinae is a subfamily of opossums. It includes the extant genera Caluromys, Caluromysiops and Glironia, as well as the extinct Pachybiotherium. It has sometimes been classed as a full family, Caluromyidae....

      • Genus: Caluromys
        • Brown-eared Woolly Opossum
          Brown-eared Woolly Opossum
          The Brown-eared Woolly Opossum , also known as the Western Woolly Opossum, is a woolly opossum species from South America...

           Caluromys lanatus LC
    • Subfamily: Didelphinae
      Didelphinae
      Didelphinae is a subfamily of opossums. Specimens have been collected throughout the Americas but are predominant in South and Central America....

      • Genus: Chacodelphys
        • Chacoan Pygmy Opossum
          Chacoan Pygmy Opossum
          The Chacoan Pygmy Opossum is a recently described genus and species of didelphimorph marsupial. The only species in Chacodelphys, C. formosa, is known from only one specimen collected in 1920 in the Chaco of Formosa Province, Argentina.-Description:The Chacoan Pygmy Opossum is the smallest known...

           Chacodelphys formosa VU
      • Genus: Chironectes
        • Water Opossum
          Water Opossum
          The water opossum , also locally known as the yapok, is a marsupial of the family Didelphidae. It is the only member of its genus, Chironectes...

           Chironectes minimus LC
      • Genus: Cryptonanus
        Cryptonanus
        Cryptonanus is a genus of opossums from South America. It includes five species found from Bolivia to Uruguay and eastern Brazil, one of which is now extinct. Although the first species were discovered in 1931, the genus was not recognized as distinct from Gracilinanus until 2005...

        • Chacoan Gracile Opossum
          Chacoan gracile opossum
          The chacoan gracile opossum is a species of opossum in the family Didelphidae. It is native to Argentina, Brazil and Paraguay. Its habitat is seasonally flooded grasslands and forests in and near the Gran Chaco....

           Cryptonanus chacoensis LC
        • Red-bellied Gracile Opossum
          Red-bellied Gracile Opossum
          The Red-bellied Gracile Opossum is an extinct species of opossum that was native to Jujuy Province, Argentina. Its forest habitat has been destroyed, and it was last seen in 1962....

           †Cryptonanus ignitus EX
      • Genus: Didelphis
        Didelphis
        The six species in the genus Didelphis, commonly known as large American opossums, are members of the Didelphimorphia order....

        • White-eared Opossum
          White-eared Opossum
          The White-eared Opossum is an opossum species from South America. It is found in Argentina, Bolivia, Brazil, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay and Venezuela....

           Didelphis albiventris LC
        • Big-eared Opossum
          Big-eared Opossum
          The Big-eared Opossum is an opossum species from South America. It is found in Argentina, Brazil and Paraguay.This species, which was considered a population of the Common Opossum for some time, was originally described as D. azarae by Coenraad Jacob Temminck in 1824, but this name was...

           Didelphis aurita LC
        • Common Opossum
          Common Opossum
          The common opossum , also called the southern or black-eared opossum, is a mammal species living from the northeast of Mexico to Bolivia, including the Lesser Antilles, where it is called manicou. It prefers the woods, but can also live in fields and cities...

           Didelphis marsupialis LC
      • Genus: Gracilinanus
        Gracilinanus
        Gracilinanus is a genus of opossum in the family Didelphidae. It was separated from the genus Marmosa in 1989, and has since had the genus Cryptonanus removed from it...

        • Agile Gracile Opossum
          Agile Gracile Opossum
          The Agile Gracile Opossum , is an opossum species from South America. It is found in Argentina, Bolivia, Brazil, Colombia, Peru, Paraguay, and Uruguay....

           Gracilinanus agilis LC
        • Brazilian Gracile Opossum
          Brazilian Gracile Opossum
          The Brazilian gracile opossum, Gracilinanus microtarsus, is a species of small opposum from Brazil.-Description:Brazilian gracile opossums are relatively small opossums, with males ranging from and females from in head-body length. The tail is between 30 and 50% of the head-body length...

           Gracilinanus microtarsus LC
      • Genus: Lestodelphys
        • Patagonian Opossum
          Patagonian Opossum
          The Patagonian opossum is the sole species in genus Lestodelphys. They occur further south, in Argentina, than any other living marsupial....

           Lestodelphys halli LC
      • Genus: Lutreolina
        • Lutrine Opossum
          Lutrine Opossum
          The lutrine opossum , also known as the little water opossum or thick-tailed opossum, is an opossum species from South America and is monotypical of the genus Lutreolina. It is found in Brazil, Argentina, Bolivia, Uruguay, Paraguay, Colombia and Guyana...

           Lutreolina crassicaudata LC
      • Genus: Marmosa
        Marmosa
        The nine species in the genus Marmosa are relatively small Neotropic members of the order Didelphimorphia. This genus is one of four that are known as mouse opossums. The others are Micoureus , Thylamys and Tlacuatzin, the grayish mouse opossum...

        • Subgenus: Micoureus
          Micoureus
          Micoureus is a genus of Neotropic opossums of the family Didelphidae. It includes the following species:* Alston's Mouse Opossum * White-bellied Woolly Mouse Opossum...

          • White-bellied Woolly Mouse Opossum
            White-bellied Woolly Mouse Opossum
            The White-bellied Woolly Mouse Opossum, Micoureus constantiae, is a small pouchless marsupial of the family Didelphidae. It is arboreal and nocturnal and inhabits moist forests in eastern Bolivia, the Brazilian State of Mato Grosso, and northwestern Argentina...

             Marmosa constantiae LC
          • Tate's Woolly Mouse Opossum
            Tate's woolly mouse opossum
            Tate's woolly mouse opossum is an omnivorous, arboreal South American marsupial of the family Didelphidae, named after American zoologist George Henry Hamilton Tate. Insects are a major component of its diet. It is native to Atlantic coastal forests of Brazil, Paraguay and Argentina....

             Marmosa paraguayanus LC
      • Genus: Metachirus
        • Brown Four-eyed Opossum
          Brown Four-eyed Opossum
          The Brown Four-eyed Opossum is a pouchless marsupial of the family Didelphidae. It is found in different forested habitats of Central and South America, from Nicaragua and to Paraguay and northern Argentina...

           Metachirus nudicaudatus LC
      • Genus: Monodelphis
        • Yellow-sided Opossum
          Yellow-sided Opossum
          The Yellow-sided Opossum, Monodelphis dimidiata, is an opossum species from South America. It is found in Argentina, Brazil and Uruguay.-References:*...

           Monodelphis dimidiata LC
        • Gray Short-tailed Opossum
          Gray Short-tailed Opossum
          The gray short-tailed opossum is a small member of the Didelphidae family of opossums. It was the first marsupial to have its genome sequenced. It is naturally found in arboreal habitats in Bolivia, Brazil and Paraguay. The opossum is used as a research model in science, and is also frequently...

           Monodelphis domestica LC
        • Pygmy Short-tailed Opossum
          Pygmy Short-tailed Opossum
          The Pygmy Short-tailed Opossum, Monodelphis kunsi, is an opossum species from South America. It is found in Argentina, Bolivia, Brazil and Paraguay.-References:**...

           Monodelphis kunsi LC
        • Long-nosed Short-tailed Opossum
          Long-nosed Short-tailed Opossum
          The Long-nosed Short-tailed Opossum, Monodelphis scalops, is an opossum species from South America. It is found in Argentina and Brazil.-References:*...

           Monodelphis scalops LC
        • Southern Red-sided Opossum
          Southern Red-sided Opossum
          The Southern Red-sided Opossum, Monodelphis sorex, is an opossum species from South America. It is found in Argentina, Brazil and Paraguay....

           Monodelphis sorex LC
        • One-striped Opossum
          One-striped Opossum
          The One-striped Opossum, Monodelphis unistriata, is an opossum species from South America. It is found in Argentina and Brazil.-References:*...

           Monodelphis unistriata DD
      • Genus: Philander
        • Southeastern Four-eyed Opossum
          Southeastern Four-eyed Opossum
          The Southeastern Four-eyed Opossum, Philander frenatus, is an opossum species from South America. It is a large dark gray opossum found in Brazil, Paraguay and Argentina. Its dorsal fur is dark gray. The fur on the sides is also gray, but lighter than the dorsal fur. The ventral fur is white or...

           Philander frenata LC
      • Genus: Thylamys
        Thylamys
        Thylamys is a genus of opossum in the family Didelphidae. The premaxillae are rounded rather than pointed. The females lack a pouch. The females' nipples are arranged in two symmetrical rows on the abdomen All species but T...

        • Cinderella Fat-tailed Mouse Opossum
          Cinderella fat-tailed mouse opossum
          The Cinderella fat-tailed mouse opossum is a species of opossum in the family Didelphidae. It is found in northern Argentina and southern Bolivia, in the eastern foothills of the Andes. Its dorsal fur is gray brown to dark brown. Its ventral fur is gray-based, except for the white to yellowish...

           Thylamys cinderella LC
        • Elegant Fat-tailed Mouse Opossum
          Elegant Fat-tailed Mouse Opossum
          The Elegant Fat-tailed Mouse Opossum is a species of opossum in the family Didelphidae. Its head-and-body length ranges from 106 to 121 millimeters. Its tail length ranges from 115 to 142 millimeters. Its tail is swollen and has fine hairs all over it. Its fur color varies, but it usually ranges...

           Thylamys elegans LC
        • White-bellied Fat-tailed Mouse Opossum
          White-bellied Fat-tailed Mouse Opossum
          The White-bellied Fat-tailed Mouse Opossum is a species of opossum in the family Didelphidae. It is found in Argentina, Bolivia, Chile and Peru.-Description:...

           Thylamys pallidior LC
        • Common Fat-tailed Mouse Opossum
          Common Fat-tailed Mouse Opossum
          The Common Fat-tailed Mouse Opossum is a species of opossum in the family Didelphidae. It occurs in Argentina, Bolivia, Brazil, and Paraguay in chaco and Andean foothill habitats. Its head-and-body length is about 75 to 120 mm, and its tail length is about 90 to 134 mm...

           Thylamys pusillus LC
        • Argentine Fat-tailed Mouse Opossum
          Argentine fat-tailed mouse opossum
          The Argentine fat-tailed mouse opossum is a species of opossum in the family Didelphidae. It is found in the eastern foothills of the Andes in northern Argentina and southern Bolivia. Its dorsal fur is gray brown to dark brown. Its ventral fur is gray-based except for the white to yellowish chest...

           Thylamys sponsorius LC
        • Buff-bellied Fat-tailed Mouse Opossum
          Buff-bellied fat-tailed mouse opossum
          The buff-bellied fat-tailed mouse opossum is a species of opossum in the family Didelphidae. It is found in the forests of northern Argentina and southern Bolivia. Its dorsal fur is cinnamon brown...

           Thylamys venustus DD

Order: Paucituberculata (shrew opossums)

----
There are six extant species of shrew opossum. They are small shrew
Shrew
A shrew or shrew mouse is a small molelike mammal classified in the order Soricomorpha. True shrews are also not to be confused with West Indies shrews, treeshrews, otter shrews, or elephant shrews, which belong to different families or orders.Although its external appearance is generally that of...

-like marsupial
Marsupial
Marsupials are an infraclass of mammals, characterized by giving birth to relatively undeveloped young. Close to 70% of the 334 extant species occur in Australia, New Guinea, and nearby islands, with the remaining 100 found in the Americas, primarily in South America, but with thirteen in Central...

s confined to the Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...

.
  • Family: Caenolestidae
    • Genus: Rhyncholestes
      • Long-nosed Caenolestid Rhyncholestes raphanurus NT

Order: Microbiotheria
Microbiotheria
The Monito del Monte is the only extant member of its family and the only surviving member of an ancient order, the Microbiotheria. The oldest microbiothere currently recognised is Khasia cordillerensis, based on fossil teeth from Early Palaeocene deposits at Tiupampa, Bolivia...

 (Monito del Monte)

----
The Monito del Monte is the only extant member of its family and the only surviving member of an ancient order, the Microbiotheria.
  • Family: Microbiotheriidae
    • Genus: Dromiciops
      • Monito del Monte
        Monito del Monte
        The Monito del Monte The Monito del Monte The Monito del Monte (Spanish for "little mountain monkey", Dromiciops gliroides, is a diminutive marsupial native only to southwestern South America (Chile and Argentina). It is the only extant species in the ancient order Microbiotheria, and the sole New...

         Dromiciops gliroides NT

See also

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