''Euchemotrema'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of small, air-breathing

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as ...

s, terrestrial

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

s in the family

Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. MolluscaBase eds. (2021). MolluscaBase. Polygyridae Pilsbry, 1895. Accessed through: World Register of Marine Species a ...

Shell description

The shell of species in this genus is usually about 8 to 11 mm in diameter (about 3/8 inch). The shells are brown with a velvety surface, similar to that of ''

Stenotrema ''Stenotrema'' is a genus of air-breathing land snails, terrestrial animal, terrestrial pulmonate gastropod molluscs in the family Polygyridae. These are typically small to medium-sized snails, with a velvety or hairy gastropod shell, shell surfa ...

'', and, in fact, this genus is sometimes combined into ''Stenotrema''.Pilsbry, Henry A. 1940.
Land Mollusca of North America (North of Mexico)
'. Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 675-688. These snails typically have a less complex aperture than ''Stenotrema'': "without a tooth within the outer arc of the lip and with no notch in the basal lip". There are also peculiarities of the male anatomy that separate the two genera.

Distribution

''Euchemotrema'' is widely distributed in eastern and central

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

Species

This genus includes the following species and subspecies: *'' Euchemotrema cheatumi'' (R. W. Fullington, 1974) *'' Euchemotrema fasciatum'' (Pilsbry, 1940) *''

Euchemotrema fraternum ''Euchemotrema fraternum'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the su ...

'' (Say, 1824) **'' Euchemotrema fraternum montanum'' (Archer, 1939) *''

Euchemotrema hubrichti ''Euchemotrema'' is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae. Shell description The shell of species in this genus is usually about 8 to 11 mm in diameter (about 3/8 in ...

'' (Pilsbry, 1940) / ''

Stenotrema hubrichti ''Stenotrema hubrichti'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Polygyridae. This species is endemic to the United States The United States of America (U.S.A. or USA), commonly ...

'' Pilsbry, 1940Mollusc Specialist Group (1996)
''Stenotrema hubrichti''2006 IUCN Red List of Threatened Species.
Downloaded on 7 August 2007. *'' Euchemotrema leai'' (Binney, 1841) *''

Euchemotrema leai aliciae ''Euchemotrema'' is a genus of small, air-breathing land snails, terrestrial animal, terrestrial pulmonate gastropod molluscs in the family Polygyridae. Shell description The shell of species in this genus is usually about 8 to 11 mm in dia ...

'' (Pilsbry, 1893) *'' Euchemotrema wichitorum'' (Branson, 1972) Wichita Mountains pillsnail

References

{{Taxonbar, from=Q3076657 Polygyridae Gastropod genera