Xerocrassa
Encyclopedia
Xerocrassa is a genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of small, air-breathing, land snail
Land snail
A land snail is any of the many species of snail that live on land, as opposed to those that live in salt water and fresh water. Land snails are terrestrial gastropod mollusks that have shells, It is not always an easy matter to say which species are terrestrial, because some are more or less...

s, terrestrial
Terrestrial animal
Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonate gastropod molluscs in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 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:...

.

Some species of Xerocrassa are also referred to as belonging to the subgenus Xerocrassa, within the genus Trochoidea
Trochoidea (genus)
Trochoidea is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Hygromiidae.The name means "those that are shaped like a top"....

; those species are also known under the generic name Trochoidea.

Species

There are 48 or more species in the genus Xerocrassa:
  • Xerocrassa amphiconus (Maltzan, 1883)
  • Xerocrassa arturi (Haas, 1924)
  • Xerocrassa barceloi (Hidalgo, 1878)
  • Xerocrassa betulonensis (Bofill, 1897)

  • Xerocrassa geyeri
    Xerocrassa geyeri
    Xerocrassa geyeri is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae. It is also often known as Trochoidea geyeri.- Taxonomy :...

    (Soós, 1926)
  • Xerocrassa seetzeni
    Xerocrassa seetzeni
    Xerocrassa seetzeni is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae.- Distribution :...

    (Pfeiffer, 1847) - type species
    Type species
    In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...

  • Xerocrassa siderensis (Maltzan, 1883)
  • Xerocrassa sphakiota (Maltzan, 1883)
  • Xerocrassa subrogata (Pfeiffer, 1853)
  • Xerocrassa subvariegata (Maltzan, 1883)
  • Xerocrassa turolensis (Ortiz de Zárate, 1963)
  • Xerocrassa zaharensis (Puente & Arrébola, 1996)

External links

  • Sauer J. & Hausdorf B. (2010). "Reconstructing the evolutionary history of the radiation of the land snail genus Xerocrassa on Crete based on mitochondrial sequences and AFLP markers". BMC Evolutionary Biology 10: 299. doi:10.1186/1471-2148-10-299.
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