IUCN Red List vulnerable species (Animalia)
Encyclopedia
On 30 January 2010, the IUCN Red List of Threatened Species identified 4618 Vulnerable species
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:...

, subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 and varieties, stocks and sub-populations in the Animalia kingdom.
Megascolecidae
Megascolecidae
Megascolecidae is a large family of earthworms which has native representatives in Australia, New Zealand, Southeast and East Asia, and North America. The most ancient lineages of the family show a Gondwanan distribution and have been used as evidence of continental drift. Members of the Pheretima...



Linyphiidae
Linyphiidae
Linyphiidae is a family of spiders, including more than 4,300 described species in 578 genera worldwide. This makes Linyphiidae the second largest family of spiders after the Salticidae. New species are still being discovered throughout the world, and the family is poorly known...



Lycosidae


Theraphosidae


Crangonyctidae
Crangonyctidae
Crangonyctidae is a family of cave-dwelling freshwater amphipod crustaceans. It contains the following genera:*Amurocrangonyx Sidorov & Holsinger, 2007 *Bactrurus Hay, 1902*Crangonyx Bate, 1859*Lyurella Derzhavin, 1939...



Gammaridae
Gammaridae
Gammaridae is a family of amphipods. In North America they are included among the folk taxonomic category of "scuds", and otherwise gammarids is usually used as a common name....



Niphargidae
Niphargidae
Niphargidae is a family of amphipods. It contains the following genera:*Carinurella Sket, 1971*Foroniphargus G. Karaman, 1985*Haploginglymus Mateus & Mateus, 1958*Microniphargus Schellenberg, 1934*Niphargellus Schellenberg, 1938...



Anaspididae
Anaspididae
Anaspididae is a family of freshwater crustacean that is endemic to Tasmania, Australia. The family contains 3 genera and 5 species. This group of crustaceans are considered living fossils. They are commonly and collectively known as the Tasmanian anaspid crustaceans. Anaspidids have stalked eyes,...



Chydoridae


Daphniidae
Daphniidae
Daphniidae is a family in the order Cladocera . Species within this family occur in several places within Africa including Lake Chad in northwest Africa and in the Makgadikgadi Pans in Botswana...



Chirocephalidae
Chirocephalidae
Chirocephalidae is a family of fairy shrimp, characterised by a reduced or vestigial maxilla, more than two setae on the fifth endite, divided pre-epipodites and widely separated seminal vesicles. It consists of the following eight genera, including the genera formerly placed in the families...



Thamnocephalidae
Thamnocephalidae
Thamnocephalidae is a family of crustaceans with wide distribution including Western Australia and Southern Africa. It was originally described as a subfamily of Branchipodidae by Alpheus Spring Packard in 1883, and elevated to the rank of family by Simon in 1886...



Centropagidae
Centropagidae
Centropagidae is a family of copepods. Its members are particularly common as plankton in coastal waters and in fresh water in Australia and southern South America...



Diaptomidae
Diaptomidae
Diaptomidae is a family of freshwater pelagic copepods. It includes around 50 genera:*Acanthodiaptomus Kiefer, 1932*Aglaodiaptomus Light, 1938*Allodiaptomus Kiefer, 1936*Arctodiaptomus Kiefer, 1932*Argyrodiaptomus Brehm, 1933...



Limnadiidae


Cyclopidae
Cyclopidae
Cyclopidae is a family of copepods. It contains more than half of the 1,200 species in the order Cyclopoida in over 70 genera.-Genera:The following genera are accepted as valid:*Abdiacyclops Karanovic, 2005*Acanthocyclops Kiefer, 1927...



Astacidae
Astacidae
The family Astacidae comprises the freshwater crayfish native to Europe and western North America. It is made up of three genera. Pacifastacus is found on the Pacific coast of the United States and British Columbia and includes the signal crayfish and the Shasta crayfish...



Atyidae
Atyidae
Atyidae is a family of shrimp, present in all tropical and most temperate waters of the world. Adults of this family are almost always confined to fresh water...



Cambaridae
Cambaridae
Cambaridae is the largest of the three families of freshwater crayfish, with over 400 species. Most of the species in the family are native to North America east of the Great Divide, such as the invasive species Procambarus clarkii and Orconectes rusticus, with fewer species living in East Asia and...



Gecarcinucidae
Gecarcinucidae
Gecarcinucidae is a family of freshwater crabs. Some scientists also include the genera placed in the family Parathelphusidae in a larger Gecarcinucidae....



Parastacidae
Parastacidae
Parastacidae is the family of freshwater crayfish found in the southern hemisphere. The family is a classic Gondwana-distributed taxon, with extant members in South America, Madagascar, Australia, New Zealand and New Guinea, and extinct taxa also in Antarctica.Three genera are to be found in Chile,...



Potamidae
Potamidae
Potamidae is a family of freshwater crabs. Its more than 650 species and nearly 100 genera are divided into two subfamilies — Potaminae around the Mediterranean Sea, on Socotra and eastwards to Northern India, and Potamiscinae in East Asia....



Potamonautidae
Potamonautidae
Potamonautidae is a family of freshwater crabs endemic to tropical parts of Africa and adjacent islands, including Madagascar, the Seychelles, Zanzibar, Mafia, Pemba, Bioko, São Tomé, Príncipe and Sherbro Island. It comprises 18 extant genera and 138 extant species...



Pseudothelphusidae
Pseudothelphusidae
Pseudothelphusidae is a family of freshwater crabs found chiefly in mountain streams in the Neotropics. They are believed to have originated in the Greater Antilles and then crossed to Central America via a Pliocene land bridge.-Parasitology:...



Trichodactylidae
Trichodactylidae
Trichodactylidae is a family of crabs, in its own superfamily, Trichodactyloidea. They are all freshwater animals from Central and South America, including some offshore islands, such as Ilhabela, São Paulo. Only one of the 50 species is known from the fossil record, Sylviocarcinus piriformis from...



Ameiridae


Canthocamptidae
Canthocamptidae
Canthocamptidae is a family of copepods. Most of the 700 species are confined to fresh water, although there are also marine species. It contains the following genera:*Afrocamptus Chappuis, 1932*Antarctobiotus Chappuis, 1930...



Darcythompsoniidae


Asellidae
Asellidae
Asellidae is a family of isopod crustaceans. It is one of the largest families of freshwater isopods, living in both epigean and hypogean habitats in North America and Europe...



Cirolanidae
Cirolanidae
Cirolanidae is a family of isopod crustaceans, including the following genera:*Aatolana Bruce, 1993*Annina Budde-Lund, 1908*Antrolana Bowman, 1964*Aphantolana Moore & Brusca, 2003*Arubolana Botosaneanu & Stock, 1979...



Phreatoicidae
Phreatoicidae
Phreatoicidae is a family of blind, freshwater isopods. They have survived apparently unchanged for 350 million years, and are only found in South Africa, India, Australia and New Zealand. They were first found near Christchurch in 1882 by Charles Chilton...



Sphaeromatidae
Sphaeromatidae
Sphaeromatidae is a family of isopods, containing the following genera:*Afrocerceis Müller, 1995*Agostodina Bruce, 1994*Amphoroidea H...



Stenasellidae


Trichoniscidae
Trichoniscidae
Trichoniscidae are a family of isopods , including the most abundant British woodlouse, Trichoniscus pusillus.Most species of woodlice that have returned to an aquatic or amphibian way of life belong to this family...



Candonidae
Candonidae
Candonidae is a family of ostracods, containing around 25% of all known species of freshwater ostracods. Around 75% of genera in the family are endemic to a single zoogeographic region...



Limnocytheridae


Notodromadidae


Spirostreptidae
Spirostreptidae
Spirostreptidae is a family of millipedes. It contains the following genera:*Aethiopistreptus*Alloporus*Alogostreptus*Anastreptus*Andenostreptus*Andineptus*Anethoporus*Archispirostreptus*Attemsostreptus...



Cerambycidae


Dytiscidae
Dytiscidae
Dytiscidae – based on the Greek dytikos , "able to dive" – are the predaceous diving beetles, a family of water beetles. They are about 25 mm long on average, though there is much variation between species. Dytiscus latissimus, the largest, can grow up to 45 mm long...



Lucanidae


Scarabaeidae
Scarabaeidae
The family Scarabaeidae as currently defined consists of over 30,000 species of beetles worldwide. The species in this large family are often called scarabs or scarab beetles. The classification of this family is fairly unstable, with numerous competing theories, and new proposals appearing quite...



Tenebrionidae


Formicidae


Hesperiidae


Lycaenidae
Lycaenidae
The Lycaenidae are the second-largest family of butterflies, with about 6000 species worldwide, whose members are also called gossamer-winged butterflies...



Nymphalidae
Nymphalidae
The Nymphalidae is a family of about 5,000 species of butterflies which are distributed throughout most of the world. These are usually medium sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called...



Papilionidae


Aeshnidae
Aeshnidae
The hawkers include the largest dragonflies found in North America and Europe, and are among the largest of the dragonflies on the planet...



Calopterygidae
Calopterygidae
Calopterygidae are a family of damselflies in the order Odonata and are commonly known as broad-winged damselflies or demoiselles. These rather large damselflies have wingspans of 5–8 cm and they're often metallic-coloured. The family contains some 150 species...



Chlorocyphidae
Chlorocyphidae
Chlorocyphidae is a family of damselfies, commonly known as jewels. They are most commonly found in Africa and Asia.- See also :* List of damselflies of the world...



Chlorogomphidae
Chlorogomphidae
The Chlorogomphidae are a family of Odonata from the suborder Anisoptera....



Coenagrionidae
Coenagrionidae
The insect family Coenagrionidae is found in the order Odonata and the suborder Zygoptera. The Zygoptera are the damselflies, which although less known than the dragonflies, are no less common. There are more than 1100 species in this family, making it the largest damselfly family...



Cordulegastridae
Cordulegastridae
The Cordulegastridae are a family of Odonata from the suborder Anisoptera. They are commonly known as Spiketails. Some vernacular names for the species of this family are biddie and flying adder. They have a large brown or black body with yellow markings. They can be found along small, clear,...



Corduliidae
Corduliidae
The insect family Corduliidae contains the emerald dragonflies or green-eyed skimmers. These dragonflies are usually black or dark brown with areas of metallic green or yellow, and most of them have large, emerald-green eyes...



Euphaeidae
Euphaeidae
Euphaeidae is a family of damselflies in the order Odonata. It is sometimes called Epallaginidae They are commonly known as Gossamerwings. It is a small family of damselflies with around 70 species. They commonly occur in Old World tropics. They are large and mostly metallic-coloured...



Gomphidae
Gomphidae
Gomphidae is an Odonata family that contains about 90 genera and 900 species. They are commonly referred to as clubtail dragonflies. The name refers to the clublike widening of the end of the abdomen...



Libellulidae
Libellulidae
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in the world. It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae. Even if these are excluded , there still remains a...



Macromiidae
Macromiidae
The insect family Macromiidae contains the dragonfly species known as cruisers or skimmers. They tend to fly over bodies of water straight down the middle. They are similar to Aeshnidae in size, but the eyes are green and just barely meet at the top of the head.Macromiidae has been traditionally...



Megapodagrionidae
Megapodagrionidae
Megapodagrionidae is a family of damselflies, commonly called flatwings for their habit of spreading out the hindwings horizontally when at rest...



Platycnemididae
Platycnemididae
Platycnemididae are a family of damselfly called white-legged damselflies. It is sometimes known as Platycnemidae.This is a list of genera with the number of species in each.*Allocnemis — 2 species*Arabicnemis — 1 species...



Platystictidae
Platystictidae
Platystictidae is a family of damselflies, commonly known as shadowdamsels. They look very similar to the threadtail damselfly family . They can mostly be found throughout Asia, Central America, and South America.- See also :...



Protoneuridae
Protoneuridae
Protoneuridae is a family of damselflies. Most species are commonly known as threadtails, while others are commonly known as bambootails. They are called threadtails because their abdomen are pin-thin. Threadtails are usually small size damselflies and their wings are usually transparent...



Pseudostigmatidae
Pseudostigmatidae
Pseudostigmatidae is a family of tropical damselflies, known as helicopter damselflies, giant damselflies or Forest Giants. The family includes the largest of all damselfly species...



Acrididae
Acrididae
The Acrididae are the predominant family of grasshoppers, comprising some 10,000 of the 11,000 species of the entire suborder Caelifera. The Acrididae are best known because all locusts are of the Acrididae. The subfamily Oedipodinae is sometimes classified as a distinct family Oedipodidae in the...



Eumastacidae


Gryllidae


Rhaphidophoridae
Rhaphidophoridae
The orthopteran family Rhaphidophoridae includes the cave wetas, cave crickets, camelback crickets, camel crickets, spider crickets and sand treaders, of the suborder Ensifera; in some regions, such as Missouri and Virginia, these crickets are referred to as "Cricket Spiders"...



Stenopelmatidae


Tetrigidae
Tetrigidae
Tetrigidae is a family in the order Orthoptera, which also includes crickets, grasshoppers, and katydids. Species within the Tetrigidae are variously called grouse locusts, pygmy locusts, groundhoppers or pygmy grasshoppers. There are roughly 1,600 species in about 250 genera altogether...



Tettigoniidae
Tettigoniidae
The family Tettigoniidae, known in American English as katydids and in British English as bush-crickets, contains more than 6,400 species. It is part of the suborder Ensifera and the only family in the superfamily Tettigonioidea. They are also known as long-horned grasshoppers, although they are...



Gripopterygidae


Acipenseridae


Atherinidae


Bedotiidae
Bedotiidae
Bedotiidae is a family of fish known as the Madagascar rainbowfish, Madagascan rainbowfish, or Malagasy rainbowfish due to their endemism to Madagascar. It includes two genera, Bedotia and Rheocles.-Anatomy and morphology:...



Melanotaeniidae


Pseudomugilidae
Pseudomugilidae
The Blue-eyes are the family of atheriniform fish, the Pseudomugilidae, related to the rainbowfishes. They inhabit fresh and brackish water in Australia and New Guinea. Blue-eyes are small fish, typically no more than in length...



Telmatherinidae
Telmatherinidae
The Sail-fin silversides are a family of atheriniform fish, the Telmatherinidae, inhabiting fresh and brackish water . All but one species are restricted to the island of Sulawesi, and most are found solely in the Malili Lakes of that island....



Batrachoididae


Adrianichthyidae


Hemiramphidae


Characidae
Characidae
The Characidae, characids or characins are a family of freshwater subtropical and tropical fish, belonging to the order Characiformes. The name "characins" is the historical one, but scientists today tend to prefer "characids" to reflect their status as a by and large monophyletic group at family...



Clupeidae
Clupeidae
Clupeidae is the family of the herrings, shads, sardines, hilsa and menhadens. It includes many of the most important food fishes in the world.-Description and biology:...



Balitoridae


Catostomidae
Catostomidae
Catostomidae is the sucker family of the order Cypriniformes. There are 80 species in this family of freshwater fishes. Catostomidae are found in North America, east central China, and eastern Siberia...



Cobitidae


Cyprinidae


Aplocheilidae
Aplocheilidae
Aplocheilidae are a family of bony fishes containing about 15 species. Formerly, the name "Aplocheilidae" was used for the Aplocheiloidei as a whole, i.e. including the Nothobranchiidae of Africa and the mainly South American Rivulidae as subfamilies. This obsolete system is sometimes still seen,...



Cyprinodontidae


Fundulidae
Fundulidae
Fundulidae is the family of topminnows and North American killifishes. The 46 species are native to North America as far south as Yucatan, and to the islands of Bermuda and Cuba, occurring in both freshwater and marine environments....



Goodeidae
Goodeidae
Splitfins, are a family, Goodeidae, of teleost fish endemic to Mexico and some areas of the United States. This family contains 40 species within 18 genera. The family is named after ichthyologist George Brown Goode.-Range and Geographic Distribution:...



Nothobranchiidae
Nothobranchiidae
Nothobranchiidae are a family of bony fishes containing roughly 300 species. They are small killifish, usually measuring about . They are essentially limited to Africa, and were formerly included in the family Aplocheilidae...



Poeciliidae
Poeciliidae
Poeciliidae is a family of fresh-water fish which are live-bearing aquarium fish . They belong to the order Cyprinodontiformes, tooth-carps, and include well-known aquarium fish such as the guppy, molly, platy, and swordtail...



Rivulidae
Rivulidae
Rivulidae are a family of killifishes in the order Cyprinodontiformes. They are commonly known as rivulids, South American killifish or New World killifish. The latter names are slightly misleading however, as they are neither restricted to South America – though most are in fact found there...



Gadidae
Gadidae
Gadidae is a family of marine fish, included in the order Gadiformes. It includes the cod, haddock, whiting, and pollock.Most species of gadid are found in temperate waters of the northern hemisphere, although there are some exceptions. They are generally medium sized fish, and are distinguished...



Pegasidae
Pegasidae
The seamoths are a family, the Pegasidae, of fish found in coastal tropical waters.They are distinguished by flattened bodies, the presence of large, wing-like, pectoral fins, and a body encased in thick, bony plates. Most species also have an elongated snout in front of their jaws...



Kneriidae
Kneriidae
The Kneriidae are a small family of freshwater gonorhynchiform fishes native to Africa.They typically live in fast-flowing highland streams, and are small fish, no more than in length. Some species are sexually dimorphic, with the male possessing a rosette on the gill covers that is absent in the...



Bythitidae


Mormyridae
Mormyridae
The family Mormyridae, sometimes called "elephantfish" , are freshwater fish in the order Osteoglossiformes native to Africa. It is by far the largest family in the order with around 200 species. Members of the family are popular, if challenging, aquarium species...



Belontiidae


Chaenopsidae
Chaenopsidae
The blennioid family Chaenopsidae includes the pike-blennies, tube-blennies and flagblennies: all perciform marine fish. The family is strictly tropical, ranging from North to South America...



Chaetodontidae


Cichlidae


Eleotridae
Eleotridae
Sleeper gobies are members of the Eleotridae fish family, found predominantly in the tropical Indo-Pacific. There are approximately 35 genera and 150 species. While many eleotrids pass through a planktonic stage in the sea and some spend their entire lives in the sea, as adults the majority live in...



Gobiidae


Labridae


Lutjanidae
Lutjanidae
Snappers are a family of perciform fish, mainly marine but with some members inhabiting estuaries, feeding in freshwater. Some are important food fish. One of the best known is the red snapper....



Osphronemidae


Percichthyidae


Percidae
Percidae
The Percidae are a family of perciform fish found in fresh and brackish waters of the Northern Hemisphere. The family contains about 200 species in ten genera...



Pomacentridae
Pomacentridae
Pomacentridae are a family of perciform fish, comprising the damselfishes and clownfishes. They are primarily marine, while a few species inhabit freshwater and brackish environments . They are noted for their hardy constitutions and territoriality...



Scaridae


Scombridae
Scombridae
Scombridae is the family of the mackerels, tunas, and bonitos, and thus includes many of the most important and familiar food fishes. The family consists of about 55 species in 15 genera and two subfamilies...



Serranidae
Serranidae
Serranidae is a large family of fishes, belonging to the order Perciformes. The family contains about 450 species of serranids in 64 genera, including the sea basses and the groupers...



Terapontidae
Terapontidae
Grunters or tigerperches are fishes in the family Terapontidae . They are found in shallow coastal waters in the Indian Ocean and western Pacific, where they live in saltwater, brackish and freshwater habitats...



Amblyopsidae


Galaxiidae


Salmonidae
Salmonidae
Salmonidae is a family of ray-finned fish, the only living family currently placed in the order Salmoniformes. It includes salmon, trout, chars, freshwater whitefishes and graylings...



Cottidae
Cottidae
The Cottidae is a family of demersal fish in the order Scorpaeniformes, suborder Cottoidei . There are about 300 species in 70 genera of Cottidae that are mostly marine and found in shallow coastal waters in the northern and arctic regions...



Amphiliidae


Bagridae
Bagridae
Bagridae are a family of catfish that originate from Africa and Asia from Japan to Borneo. These fish are commonly known as naked catfishes or bagrid catfishes.Large Bagrids are important as food fish. Some species are kept as aquarium fishes....



Clariidae


Ictaluridae
Ictaluridae
The Ictaluridae, sometimes called Ictalurids, are a family of catfish native to North America, where they are important food fish and sometimes as a sport fish. They include fish commonly known as bullheads, madtoms, channel catfish, and blue catfish....



Mochokidae
Mochokidae
The Mochokidae are a family of catfishes that are known as the squeakers and upside-down catfish. There are 10 genera and about 188 species of mochokids. All the mochokids are freshwater species originating from Africa....



Pimelodidae
Pimelodidae
Pimelodidae, commonly known as the long-whiskered catfishes, is a family of catfishes .-Taxonomy:Pimelodidae has undergone much revision. Currently, the family contains about 30 genera and about 90 recognized and known but unnamed species...



Sisoridae
Sisoridae
Sisoridae is a family of catfishes . These Asian catfish live in fast-moving waters and often have adaptations that allow them to adhere to objects in their habitat.-Taxonomy:...



Trichomycteridae
Trichomycteridae
Trichomycteridae is a family of catfishes commonly known as the pencil or parasitic catfishes. This family includes the infamous candiru fish, feared by some people for its alleged habit of entering into the urethra of humans....



Syngnathidae
Syngnathidae
Syngnathidae is a family of fish which includes the seahorses, the pipefishes, and the weedy and leafy sea dragons. The name is derived from Greek, meaning "fused jaw" - syn meaning fused or together, and gnathus meaning jaws. This fused jaw trait is something the entire family has in common...



Tetraodontidae


Alytidae


Amphignathodontidae
Amphignathodontidae
The marsupial frogs are a disputed family in the order Anura. Where it is treated as a separate family, it consists of two genera, Gastrotheca, and Flectonotus. These frogs are native to Neotropical America . Under other classifications, these are treated as part of family Hemiphractidae...



Aromobatidae
Aromobatidae
The Aromobatidae are a family of frogs which are native to Central and South America....



Arthroleptidae
Arthroleptidae
Arthroleptidae is a family of frogs found in Sub-Saharan Africa. They are also known as squeakers because of their high-pitched call. They are small, less than in length, terrestrial frogs found mostly in leaf litter on the forest floor. They completely bypass any aquatic stage, and therefore do...



Bombinatoridae
Bombinatoridae
Bombinatoridae are often referred to as Fire-bellied toads because of their brightly colored ventral sides, which show that they are highly toxic to humans. This family includes two genera, Barbourula and Bombina, both of which have flattened bodies.Bombina are warty, aquatic toads about in...



Brevicipitidae


Bufonidae


Calyptocephalellidae


Centrolenidae


Ceratobatrachidae


Ceratophryidae


Craugastoridae
Craugastoridae
Craugastoridae is a family of frogs which consists of 2 genera with a disjunct distribution: Craugastor and Haddadus.The genus Craugastor, with 112 species, has the largest distribution and can be found in the southwestern United States, Mexico, Central America up to northwestern South America. The...



Cryptobatrachidae


Cycloramphidae


Dendrobatidae


Dicroglossidae


Eleutherodactylidae


Hylidae


Hyperoliidae
Hyperoliidae
Hyperoliidae is a family of small to medium sized, brightly colored, frogs which contains more than 250 species in 19 genera. Seventeen genera are native to sub-Saharan Africa. In addition,the monotypic genus Tachycnemis occurs on the Seychelles Islands, and the genus Heterixalus is endemic to...



Leiopelmatidae
Leiopelmatidae
Leiopelmatidae, or New Zealand and North American primitive frogs, is a family belonging to the suborder Archaeobatrachia. Their relatively primitive form indicates that they have an ancient lineage...



Leptodactylidae
Leptodactylidae
Leptodactylidae is a diverse family of frogs that probably diverged from other hyloids during the Cenozoic era, or possibly at the end of the Mesozoic. There are roughly 50 genera, one of which is Eleutherodactylus, the largest vertebrate genus, with over 700 species...



Mantellidae
Mantellidae
Mantellidae is a family of the order Anura. These frogs are found only in Madagascar and Mayotte.The habits, habitat and appearance of these frogs are widely variable. Most species are terrestrial, though some are arboreal or aquatic. Body size ranges from 3 to 10 centimetres in length...



Megophryidae
Megophryidae
Megophryidae are a large family of frogs native to the warm southeast of Asia, from the Himalaya foothills eastwards, south to Indonesia and the Greater Sunda Islands in Maritime Southeast Asia, and extending to the Philippines. As of mid-2008 it encompasses approximately 70-100 species of frog...



Micrixalidae


Microhylidae
Microhylidae
Microhylidae is a geographically widespread family of frogs. There are 413 species in 69 genera and nine subfamilies, which is the largest number of genera of any frog family.-Description:...



Myobatrachidae
Myobatrachidae
Myobatrachidae is a family of frogs found in Australia and New Guinea. Members of this family vary greatly in size, from species less than long, to the second largest frog in Australia, the Giant Barred Frog , at in length...



Nyctibatrachidae


Petropedetidae


Phrynobatrachidae


Pyxicephalidae
Pyxicephalidae
Pyxicephalidae is a family of frogs.-Classification:Pyxicephalidae contains two subfamilies, with a total of 13 genera. This family was formerly considered part of the family Ranidae.Family PYXICEPHALIDAE* Subfamily Cacosterninae...



Ranidae


Rhacophoridae
Rhacophoridae
Rhacophoridae is a family of frog species, which occur in tropical regions of Asia and Africa. They are commonly known as shrub frogs, or more ambiguously as "moss frogs" or "bush frogs". Some Rhacophoridae are called "tree frogs"...



Sooglossidae
Sooglossidae
The Seychelles Frogs are a family of frogs found on the Seychelles Islands and India. Until recently this family was believed to include the genera Nesomantis and Sooglossus, but following a major revision of amphibians in 2006 the genus Nesomantis was named a junior synonym of Sooglossus;...



Strabomantidae
Strabomantidae
Strabomantidae is a family of frogs which are native to South America. These frogs lack a free-living larval stage and hatch directly into miniature "froglets".-Systematics:Holoadeninae*Barycholos*Bryophryne*Euparkerella*Holoaden...



Ambystomatidae


Hynobiidae


Plethodontidae


Salamandridae
Salamandridae
Salamandridae is a family of salamanders consisting of true salamanders and newts. Currently, 74 species have been identified in the northern hemisphere - Europe, Asia, the northern tip of Africa and North America...



Caeciliidae
Caeciliidae
Caeciliidae is the family of common caecilians. They are found in central and south America, equatorial Africa and India. Like other caecilians, they superficially resemble worms or snakes....



Ichthyophiidae
Ichthyophiidae
Ichthyophiidae is the family of Asiatic tailed caecilians or fish caecilians. They are found in south-east Asia.They are primitive caecilians, lacking many of the derived characters found in the other families. For example, the mouth is not recessed underneath the head, they possess tails, and have...



Anatidae
Anatidae
Anatidae is the biological family of birds that includes ducks, geese and swans. The family has a cosmopolitan distribution, occurring on all the world's continents except Antarctica and on most of the world's islands and island groups...



Apodidae


Trochilidae


Caprimulgidae


Alcidae


Charadriidae
Charadriidae
The bird family Charadriidae includes the plovers, dotterels, and lapwings, about 64 to 66 species in all.- Morphology :They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings, but most species of lapwing may have more rounded wings...



Laridae


Scolopacidae
Scolopacidae
The sandpipers are a large family, Scolopacidae, of waders or shorebirds. They include many species called sandpipers, as well as those called by names such as curlew and snipe. The majority of these species eat small invertebrates picked out of the mud or soil...



Ardeidae


Ciconiidae


Columbidae


Alcedinidae


Brachypteraciidae


Bucerotidae


Cuculidae


Accipitridae
Accipitridae
The Accipitridae, one of the two major families within the order Accipitriformes , are a family of small to large birds with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-sized mammals, with a number feeding on carrion and a...



Falconidae
Falconidae
The falcons and caracaras are around 60 species of diurnal birds of prey that make up the family Falconidae. The family is divided into two subfamiles, Polyborinae, which includes the caracaras and forest falcons, and Falconinae, the falcons, kestrels and falconets.-Description:Falcons and...



Cracidae
Cracidae
The chachalacas, guans and curassows are birds in the family Cracidae.These are species of tropical and subtropical Central and South America. One species, the Plain Chachalaca, just reaches southernmost Texas in the USA...



Megapodiidae


Odontophoridae


Phasianidae
Phasianidae
The Phasianidae is a family of birds which consists of the pheasants and partridges, including the junglefowl , Old World Quail, francolins, monals and peafowl. The family is a large one, and is occasionally broken up into two subfamilies, the Phasianinae, and the Perdicinae...



Gruidae


Mesitornithidae


Otididae


Rallidae
Rallidae
The rails, or Rallidae, are a large cosmopolitan family of small to medium-sized birds. The family exhibits considerable diversity and the family also includes the crakes, coots, and gallinules...



Turnicidae


Alaudidae


Atrichornithidae


Campephagidae


Cisticolidae
Cisticolidae
The Cisticolidae family of small passerine birds is a group of about 110 warblers found mainly in warmer southern regions of the Old World. They are often included within the Old World warbler family Sylviidae....



Corvidae
Corvidae
Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs and nutcrackers. The common English names used are corvids or the crow family , and there are over 120 species...



Cotingidae


Dicaeidae


Emberizidae
Emberizidae
The Emberizidae are a large family of passerine birds. They are seed-eating birds with a distinctively shaped bill.In Europe, most species are called buntings. In North America, most of the species in this family are known as sparrows, but these birds are not closely related to the sparrows, the...



Estrildidae


Eurylaimidae


Formicariidae
Formicariidae
The Formicariidae, formicariids, or ground antbirds are a family of smallish passerine birds of subtropical and tropical Central and South America. They are between 10 and 20 cm in length, and are related to the antbirds, Thamnophilidae, and gnateaters, Conopophagidae...



Fringillidae


Furnariidae


Hirundinidae


Icteridae


Malaconotidae


Meliphagidae


Mimidae


Monarchidae


Motacillidae
Motacillidae
The Motacillidae are a family of small passerine birds with medium to long tails. There are around 65 species in 6 genera and they include the wagtails, longclaws and pipits. The longclaws are entirely restricted to the Afrotropics, and the wagtails are predominately found in Europe, Africa and...



Muscicapidae


Nectariniidae


Oriolidae


Paradisaeidae


Parulidae


Picathartidae


Pipridae


Pittidae


Ploceidae


Pycnonotidae


Rhipiduridae


Sturnidae


Sylviidae
Sylviidae
Sylviidae is a family of passerine birds that was part of an assemblage known as the Old World warblers. The family was formerly a wastebin taxon with over 400 species of bird in over 70 genera. The family was poorly defined with many characteristics shared with other families...



Thamnophilidae


Thraupidae


Timaliidae


Troglodytidae


Turdidae


Tyrannidae


Vangidae


Vireonidae


Zosteropidae


Phalacrocoracidae


Galbulidae


Picidae
Picidae
The woodpeckers, piculets and wrynecks are a family, Picidae, of near-passerine birds. Members of this family are found worldwide, except for Australia and New Zealand, Madagascar, and the extreme polar regions...



Ramphastidae


Podicipedidae


Diomedeidae


Procellariidae
Procellariidae
The family Procellariidae is a group of seabirds that comprises the fulmarine petrels, the gadfly petrels, the prions, and the shearwaters. This family is part of the bird order Procellariiformes , which also includes the albatrosses, the storm-petrels, and the diving petrels.The procellariids are...



Psittacidae


Spheniscidae


Strigidae


Tytonidae
Tytonidae
Barn-owls are one of the two families of owls, the other being the true owls, Strigidae. They are medium to large sized owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons...



Apterygidae


Casuariidae
Casuariidae
The bird family Casuariidae has four surviving members: the three species of cassowary, and the only remaining species of Emu. The emus were formerly classified in their own family, Dromaiidae, but are regarded as sufficiently closely related to the cassowaries to be part of the same family.All...



Tinamidae


Carcharhinidae


Hemigaleidae
Hemigaleidae
The weasel sharks are a family, Hemigaleidae, of ground sharks found from the eastern Atlantic Ocean to the continental Indo-Pacific. They are found in shallow coastal waters to a depth of 100 m ....



Scyliorhinidae


Sphyrnidae


Triakidae


Alopiidae


Lamnidae
Lamnidae
Lamnidae is a family of sharks, commonly known as mackerel sharks or white sharks. They are large, fast-swimming sharks, found in oceans worldwide....



Odontaspididae


Ginglymostomatidae


Hemiscylliidae
Hemiscylliidae
Hemiscylliidae is a family of sharks in the order Orectolobiformes, commonly known as longtail carpet sharks or bamboo sharks. They are found in shallow waters of the tropical Indo-Pacific....



Arhynchobatidae


Dasyatidae


Gymnuridae


Narcinidae
Narcinidae
The numbfishes are a group of electric rays in the family Narcinidae. They are bottom-dwelling cartilaginous fishes with large, rounded pectoral fin discs and long tails...



Narkidae
Narkidae
Members of the family Narkidae are commonly known as sleeper rays. They are restricted to the temperate and tropical Indo-West Pacific from South Africa to Japan to Indonesia, and are exclusively marine and are absent from freshwater habitats...



Rajidae


Rhinobatidae


Rhynchobatidae


Urolophidae


Urotrygonidae
Urotrygonidae
Urotrygonidae is a family of rays in the order Myliobatiformes, commonly referred to as the American round stingrays or round rays. They are native to the tropical and warm temperate marine waters of the Americas. The two genera in this family were formerly placed within the family Urolophidae,...



Centrophoridae
Centrophoridae
Centrophoridae are a family of squaliform sharks. The family contains just two genera and approximately 15 species. They are sometimes called gulper sharks but this is also the name of a specific species in the family, Centrophorus granulosus....



Squalidae
Squalidae
Squalidae is the family of dogfish sharks. They are found in the Atlantic, Pacific, and Indian oceans, from tropical equatorial climates to the Arctic and Antarctic....



Squatinidae


Chrysochloridae


Tenrecidae
Tenrecidae
Tenrecidae is a family of mammals found on Madagascar and parts of Africa. Tenrecs are widely diverse, resembling hedgehogs, shrews, opossums, mice and even otters, as a result of convergent evolution. They occupy aquatic, arboreal, terrestrial and fossorial environments...



Eupleridae
Eupleridae
The family Eupleridae is a group of carnivorans endemic to Madagascar and comprising 10 known species in seven genera. Probably the best known species is the Fossa , in the subfamily Euplerinae...



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...



Herpestidae


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...



Otariidae


Ursidae


Viverridae


Balaenopteridae


Bovidae


Cervidae


Delphinidae


Iniidae
Iniidae
Iniidae is a family of river dolphins containing one living and three extinct genera.-Taxonomy:The family was described by John Edward Gray in 1846.Current classifications include a single living genera, Inia, with one species and three subspecies...



Suidae
Suidae
Suidae is the biological family to which pigs belong. In addition to numerous fossil species, up to sixteen extant species are currently recognized, classified into between four and eight genera...



Craseonycteridae


Emballonuridae


Hipposideridae


Molossidae


Phyllostomidae


Pteropodidae


Rhinolophidae


Vespertilionidae


Dasypodidae


Dasyuridae
Dasyuridae
Dasyuridae is a family of marsupials native to Australia and New Guinea, including 61 species divided into 15 genera. Many are small and mouse-like, giving them the misnomer marsupial mice, but the group also includes the cat-sized quolls, as well as the Tasmanian Devil...



Didelphidae


Macropodidae


Phalangeridae
Phalangeridae
Phalangeridae is a family of nocturnal marsupials native to Australia and New Guinea, including the cuscuses, brushtail possums, and their close relatives...



Pseudocheiridae
Pseudocheiridae
Pseudocheiridae is a family of arboreal marsupials containing 17 extant species of ringtailed possums and close relatives. They are found in forested areas and shrublands throughout Australia and New Guinea.-Characteristics:...



Soricidae


Talpidae
Talpidae
The family Talpidae includes the moles, shrew moles, desmans, and other intermediate forms of small insectivorous mammals of the order Soricomorpha...



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...



Macroscelididae


Caenolestidae


Equidae
Equidae
Equidae is the taxonomic family of horses and related animals, including the extant horses, donkeys, and zebras, and many other species known only from fossils. All extant species are in the genus Equus...



Rhinocerotidae


Aotidae


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...



Callitrichidae


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:...



Cercopithecidae


Cheirogaleidae
Cheirogaleidae
Cheirogaleidae is the family of strepsirrhine primates that contains the various dwarf and mouse lemurs. Like all other lemurs, cheirogaleids live exclusively on the island of Madagascar.-Characteristics:...



Hylobatidae


Indriidae
Indriidae
The Indriidae are a family of strepsirrhine primates. They are medium to large sized lemurs with only four teeth in the toothcomb instead of the usual six...



Lemuridae
Lemuridae
Lemuridae is a family of prosimian primates native to Madagascar, and one of five families commonly known as lemurs. These animals were thought to be the evolutionary predecessors of monkeys and apes, but this is no longer considered correct...



Lorisidae
Lorisidae
Lorisidae is a family of strepsirrhine primates. The lorisids are all slim arboreal animals and include the lorises, pottos and angwantibos. Lorisids live in tropical, central Africa as well as in south and southeast Asia....



Pitheciidae
Pitheciidae
The Pitheciidae are one of the five families of New World monkeys now recognised. Formerly they were included in the family Atelidae. The family includes the titis, saki monkeys and uakaris...



Tarsiidae


Capromyidae


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...



Ctenomyidae


Dipodidae
Dipodidae
The Dipodidae, or dipodids, are a family of rodents found across the northern hemisphere. This family includes over 50 species among the 16 genera....



Echimyidae


Gliridae


Heteromyidae
Heteromyidae
The family of rodents that include kangaroo rats, kangaroo mice and rock pocket mice is the Heteromyidae family. Most heteromyids live in complex burrows within the deserts and grasslands of western North America, though species within the Heteromys and Liomys genera are also found in forests and...



Muridae
Muridae
Muridae is the largest family of mammals. It contains over 600 species found naturally throughout Eurasia, Africa, and Australia. They have been introduced worldwide. The group includes true mice and rats, gerbils, and relatives....



Nesomyidae
Nesomyidae
Nesomyidae is a family of African rodents in the large and complex superfamily Muroidea. It includes several subfamilies, all of which are native to either continental Africa or to Madagascar...



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....



Sciuridae


Spalacidae
Spalacidae
The Spalacidae, or spalacids are a family of rodents in the large and complex superfamily Muroidea. They are native to eastern Asia, the Horn of Africa, the Middle East, and south-eastern Europe. It includes the blind mole rats, bamboo rats, root rats, and zokors...



Trichechidae


Crocodylidae


Agamidae
Agamidae
Agamids, lizards of the family Agamidae, include more than 300 species in Africa, Asia, Australia, and a few in Southern Europe. Many species are commonly called dragons or dragon lizards. Phylogenetically they may be sister to the Iguanidae, and have a similar appearance. Agamids usually have...



Anguidae
Anguidae
The Anguidae is a large and diverse family of lizards native to the northern hemisphere. The group includes the slowworms, glass lizards, and alligator lizards, among others. Anguidae is divided into three subfamilies and contains 94 species in eight genera. Their closest living relatives are the...



Boidae


Chamaeleonidae


Colubridae


Cordylidae
Cordylidae
Cordylidae is a family of small to medium sized lizards that occur in southern and eastern Africa. They are commonly known as "Girdled", Spinytail lizards or Girdle-tail lizards. Girdled lizards are diurnal and insectivorous...



Elapidae
Elapidae
Elapidae is a family of venomous snakes found in tropical and subtropical regions around the world, terrestrially in Asia, Australia, Africa, North America and South America and aquatically in the Pacific and Indian Oceans...



Gekkonidae


Iguanidae
Iguanidae
Iguanidae is a family of lizards, composed of iguanas and related species.-Classification of Iguanidae:Two different classification schemes have been used to define the structure of this family. These are the "traditional" classification and the classification presented by Frost et al. .Frost et...



Lacertidae
Lacertidae
Lacertidae is the family of the wall lizards, true lizards, or sometimes simply lacertas, which are native to Europe, Africa, and Asia. The group includes the genus Lacerta, which contains some of the most commonly seen lizard species in Europe...



Phrynosomatidae
Phrynosomatidae
Phrynosomatidae is a diverse family of lizards, found from Panama to the extreme south of Canada. Many members of the group are adapted to life in hot, sandy deserts, although the spiny lizards prefer rocky deserts or even relatively moist forest edges, and the short-horned lizard lives in prairie...



Polychrotidae
Polychrotidae
Polychrotidae is a family of lizards commonly known as anoles . NCBI places the anole in subfamily Polychrotinae of the family Iguanidae. Four genera are common: Anolis, Norops, Phenacosaurus, and Polychrus....



Pygopodidae
Pygopodidae
Pygopodidae is a family of squamates that have reduced or absent limbs and are related to the geckos. There are at least 35 species in two subfamilies and eight genera. They have unusually long, slender, bodies, giving them a strong resemblance to snakes...



Scincidae


Teiidae
Teiidae
Teiidae is a family of lizards native to the Americas, generally known as whiptails. The group includes the parthenogenic genera Cnemidophorus and Aspidoscelis, and the non-parthenogenic Tupinambis. It has over 230 member species in ten genera...



Tropiduridae
Tropiduridae
The Tropiduridae is a family of iguanid lizards native to South America and the West Indies. Commonly known as Neotropical ground lizards, most are ground-dwelling animals, and the family includes some lizards adapted to relatively cold climates, including those of the Andes mountains and Tierra...



Varanidae
Varanidae
Varanidae is a group of lizards of the superfamily Varanoidea. The family is a group of carnivorous lizards which includes the largest living lizard, the Komodo dragon, and the crocodile monitor. Varanidae contains the living genus Varanus and a number of extinct taxa...



Viperidae
Viperidae
The Viperidae are a family of venomous snakes found all over the world, except in Antarctica, Australia, Ireland, Madagascar, Hawaii, various other isolated islands, and above the Arctic Circle. All have relatively long, hinged fangs that permit deep penetration and injection of venom. Four...



Xantusiidae


Chelidae
Chelidae
The Chelidae are one of the three living families of the turtle suborder Pleurodira and are commonly called the Austro-South American Side Neck turtles. The Family is distributed in Australia, New Guinea, parts of Indonesia and throughout most of South America. It is a large family of turtles with...



Chelydridae
Chelydridae
Chelydridae is a family of turtles which has seven extinct and two extant genera. The extant genera are Chelydra the snapping turtles, and its larger relative Macrochelys, of which the Alligator Snapping Turtle is the only species. Both are endemic to the Western Hemisphere...



Emydidae
Emydidae
Emydidae, commonly called the pond turtles or marsh turtles, is a family of turtles. Previously, several species of Asian box turtle were classified in the family. However, revised taxonomy has separated them to a different family. Now, Emydidae, with the exception of two species of pond turtle,...



Geoemydidae
Geoemydidae
Geoemydidae is the largest and most diverse family in the order Testudines with about 70 species. It includes the Eurasian pond and river turtles and Neotropical wood turtles.-Characteristics:...



Kinosternidae
Kinosternidae
Kinosternidae is a family of mostly small turtles that includes the mud turtles and musk turtles. The family Kinosternidae contains 25 species within 4 genera, but taxonomic reclassification is an ongoing process so many sources vary on the exact numbers of species and subspecies...



Podocnemididae
Podocnemididae
Podocnemididae is a family of turtles native to Madagascar and northern South America. They are side-necked turtles , which means they do not retract their heads backwards, but hide it sideways....



Testudinidae


Trionychidae
Trionychidae
Trionychidae is a taxonomic family which comprises a number of turtle genera commonly known as softshells. They are also sometimes called pancake turtles. Softshells consist of some of the world's largest fresh water turtles, though many can adapt to living in highly brackish areas. Members of this...



Acroporidae
Acroporidae
Acroporidae is a family of small polyped stony corals in the phylum Cnidaria. The name is derived from the Greek "akron" meaning "summit" and refers to the presence of a corallite at the tip of each branch of coral. They are commonly known as staghorn corals and are grown in aquaria by reef...



Agariciidae


Dendrophylliidae


Euphyllidae


Faviidae
Faviidae
Faviidae is a family of Scleractinia. Members of this family are widely sought after for the reef aquarium trade.-Genera:*Astreosmilia Duncan, 1867*Australogyra Veron, 1982*Barabattoai Yabe and Sugiyama, 1941*Bikiniastrea Wells, 1954...



Fungiidae
Fungiidae
Fungiidae is a family of Cnidaria. It contains thirteen extant genera.-Characteristics:Species are generally solitary marine animals that are capable of benthic locomotion. These corals often appear to be bleached or dead. In most genera, a single polyp emerges from the center of the skeleton to...



Meandrinidae


Mussidae
Mussidae
Mussidae is a family of stony coral that contains the genera Acanthastrea, Blastomussa, Cynaria, Isophyllastrea, Isophyllia, Lobophyllia, Mussa, Mussimilia, Mycetophyllia, Scolymia, and Symphyllia...



Oculinidae


Pectiniidae


Pocilloporidae
Pocilloporidae
The Pocilloporidae is a family of corals in the phylum Cnidaria occurring in the Pacific and Indian Oceans....



Poritidae


Siderastreidae


Milleporidae


Hyriidae
Hyriidae
Hyriidae is a family of pearly freshwater mussels in the order Unionoida native to South America, Australia, New Zealand and New Guinea. Like all members of that order, they go through a larval stage that is parasitic on fish. The classification recognized by Banarescu uses three subfamilies...



Mutelidae
Mutelidae
Mutelidae is a family of medium-sized freshwater mussels, aquatic bivalve mollusks in the order Unionoida.-Genera within the family Mutelidae:* Aspatharia Bourguignat, 1885* Chambardia** Chambardia bozasi** Chambardia hartmanni...



Unionidae
Unionidae
Unionidae is a family of freshwater mussels, the largest in the order Unionoida, the bivalve mollusks sometimes known as river mussels, naiads, or simply as unionids.The range of distribution for this family is world-wide...



Tridacnidae
Tridacnidae
The Tridacninae are a subfamily of Bivalves colloquially known as giant clams. The family contains the biggest bivalve species, including Tridacna gigas, the giant clam. They have heavy shells, fluted with 4–6 folds. Mantle is usually brightly coloured. They inhabit coral reefs in warm seas of the...



Aciculidae
Aciculidae
The Aciculidae are a family of minute land snails which have opercula. In other words, Aciculidae are terrestrial operculate gastropods....



Ampullariidae
Ampullariidae
Ampullariidae, common name the apple snails, is a family of large freshwater snails, aquatic gastropod mollusks with a gill and an operculum...



Cyclophoridae
Cyclophoridae
Cyclophoridae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the informal group Architaenioglossa belonging to the clade Caenogastropoda .- Taxonomy :This family consists of the following subfamilies according to the taxonomy of...



Diplommatinidae
Diplommatinidae
Diplommatinidae is a family of small land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoridae.-Genera:*Subfamily Diplommatininae L...



Neocyclotidae
Neocyclotidae
Neocyclotidae is a family of tropical land snails with gills and an operculum, terrestrial gastropod mollusks in the informal group Architaenioglossa belonging to the clade Caenogastropoda .-Subfamilies:Subfamilies within the family Neocyclotidae include:* subfamily Neocyclotinae Kobelt &...



Pupinidae
Pupinidae
Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea .- Taxonomy :...



Viviparidae
Viviparidae
Viviparidae, sometimes known as the river snails or mystery snails, are a family of large operculate freshwater snails, aquatic gastropod mollusks....



Hydrocenidae
Hydrocenidae
Hydrocenidae is a poorly-known taxonomic family of minute land snails or cave snails with an operculum, terrestrial gastropod mollusks or micromollusks in the clade Cycloneritimorpha....



Lymnaeidae
Lymnaeidae
Lymnaeidae is a taxonomic family of small to large air-breathing freshwater snails, aquatic pulmonate gastropod mollusks, that belong to the clade Hygrophila....



Physidae
Physidae
Physidae, common name bladder snails, are a monophyletic taxonomic family of small freshwater snails, aquatic pulmonate gastropod molluscs in the clade Hygrophila....



Planorbidae
Planorbidae
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks....



Assimineidae
Assimineidae
Assimineidae is a family of minute snails with an operculum that live in saltwater, freshwater or on the land; they are mostly aquatic gastropod mollusks or micromollusks, in the clade Littorinimorpha.- Ecology :...



Bithyniidae
Bithyniidae
Bithyniidae is a family of small freshwater snails with an operculum, aquatic gastropod molluscs in the clade Littorinimorpha.Their minute shell is often colored. They are characterized by a calcareous operculum, a lobe on the upper surface of the neck. The ctenidium, the respiratory gill-comb, is...



Hydrobiidae
Hydrobiidae
Hydrobiidae, common name mud snails, is a large cosmopolitan taxonomic family of very small freshwater snails and brackish water snails that have an operculum, aquatic gastropod mollusks in the clade Littorinimorpha.- Distribution :...



Moitessieriidae
Moitessieriidae
Moitessieriidae is a family of small freshwater snails, aquatic gastropod molluscs in the superfamily Rissooidea.According to the taxonomy of the Gastropoda by Bouchet & Rocroi the family Moitessieriidae has no subfamilies....



Conidae


Pleuroceridae
Pleuroceridae
Pleuroceridae, common name pleurocerids, is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell....



Thiaridae
Thiaridae
Thiaridae, common name thiarids, is a family of tropical freshwater snails with an operculum, aquatic gastropod mollusks in the superfamily Cerithioidea....



Acavidae
Acavidae
Acavidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Acavoidea .- Anatomy :...



Achatinellidae
Achatinellidae
Achatinellidae is a family of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Achatinelloidea.- Taxonomy :...



Bradybaenidae
Bradybaenidae
Bradybaenidae is a taxonomic family of medium-sized to small land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea....



Camaenidae
Camaenidae
Camaenidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.This is one of the most diverse families in the clade Stylommatophora....



Cerastidae
Cerastidae
Cerastidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.- Taxonomy :The Cerastidae family is classified within the informal group Orthurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata .The family Cerastidae has no...



Charopidae
Charopidae
Charopidae is a taxonomic family of small air-breathing land snails , terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea .- Subfamilies and genera :The family Charopidae consists of the following subfamilies:* Charopinae Hutton, 1884 - synonyms:...



Chlamydephoridae
Chlamydephoridae
Chlamydephoridae is a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the clade Eupulmonata .These snails are presumed to be true carnivores...



Clausiliidae
Clausiliidae
Clausiliidae, common name door snails, are a taxonomic family of small, very elongate, mostly left-handed, air-breathing land snails, sinistral terrestrial pulmonate gastropod mollusks....



Cochlicopidae
Cochlicopidae
Cochlicopidae is a taxonomic family of small, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the superfamily Cochlicopoidea.-Anatomy:...



Euconulidae
Euconulidae
Euconulidae is a taxonomic family of minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks. This land snail family is closely allied to the Zonitidae, the glass snails.- Distribution :...



Ferussaciidae
Ferussaciidae
Ferussaciidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Achatinoidea.This family has no subfamilies...



Gastrodontidae
Gastrodontidae
Gastrodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Eupulmonata ....



Helicarionidae
Helicarionidae
Helicarionidae is a family of air-breathing land snails or semi-slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea.- Distribution :...



Helicidae
Helicidae
The Helicidae, sometimes known as the typical snails, are a taxonomic family of small to large, air-breathing, land snails. In other words, they are terrestrial pulmonate gastropod mollusks....



Helminthoglyptidae
Helminthoglyptidae
The Helminthoglyptidae are a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.This is a large and diverse group of new world snails, ranging in distribution from Alaska through North America to the West Indies, Central America, and as far...



Hygromiidae
Hygromiidae
Hygromiidae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.-Anatomy:...



Lauriidae
Lauriidae
Lauriidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.- Taxonomy :The Lauriidae family is classified within the informal group Orthurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata .The family Lauriidae has no...



Oreohelicidae
Oreohelicidae
Oreohelicidae is a family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea .-Anatomy:...



Orthalicidae
Orthalicidae
Orthalicidae are a family of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks are classified in the informal group Sigmurethra of the clade Stylommatophora...



Oxychilidae
Oxychilidae
Oxychilidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Gastrodontoidea.- Distribution :...



Partulidae
Partulidae
Partulidae is a family of air-breathing land snails, terrestrial gastropod mollusks in the infraorder Stylommatophora, endemic to Pacific islands.- Genera :Partulidae is divided into three genera:* Eua has four species, confined to Tonga and Samoa....



Punctidae
Punctidae
Punctidae, common name the "dot snails", is a family of minute air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the informal group Sigmurethra ....



Pupillidae
Pupillidae
Pupillidae is a family of mostly minute, air-breathing, land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the clade Stylommatophora....



Spelaeodiscidae
Spelaeodiscidae
Spelaeodiscidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.- Taxonomy :The Spelaeodiscidae family is classified within the informal group Orthurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata .The family Spelaeodiscidae has...



Streptaxidae
Streptaxidae
Streptaxidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in theStylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi....



Succineidae
Succineidae
Succineidae are a family of small to medium-sized, air-breathing, land snails , terrestrial pulmonate gastropod molluscs. They are commonly called amber snails because their thin fragile shells are translucent and amber-colored...



Vertiginidae
Vertiginidae
Vertiginidae is a family of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the superfamily Pupilloidea.- Distribution :...



Prosorhochmidae


Peripatopsidae
Peripatopsidae
Peripatopsidae is one of the two living velvet worm families.-Genera:* Acanthokara* Aethrikos* Aktinothele* Anoplokaros* Austroperipatus* Baeothele* Centorumis* Cephalofovea* Critolaus* Dactylothele...



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