''Stenotrema'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of 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 molluscs, terrestrial gastropod mollusks that have gastropod shell, shel ...

terrestrial Terrestrial refers to things related to land or the planet Earth, as opposed to extraterrestrial. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on o ...

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 inclu ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

s in the family

Polygyridae Polygyridae is a family (biology), family of air-breathing land snails, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.MolluscaBase eds. (2021). MolluscaBase. Polygyridae Pilsbry, 1895. Accessed thro ...

. Members of this genus are known as slitmouths. These are typically small to medium-sized snails, with a velvety or hairy

shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses Science Biology * Seashell, a hard outer layer of a marine ani ...

surface, and a narrow

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

which is usually closely guarded by well-developed "teeth".

Distribution

The genus occurs throughout most of North America, from Alaska, though Canada and the United States, into Mexico.Pilsbry, Henry A. 1940. ''Land Mollusca of North America (North of Mexico)''. Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 639-688.

Species

Genus ''Stenotrema'' contains the following species and subspecies: *'' Stenotrema altispira'' (Pilsbry, 1894) — Highland slitmouth *'' Stenotrema angellum'' (Hubricht, 1958) — Kentucky slitmouth *'' Stenotrema barbigerum'' (Redfield, 1856) — Fringed slitmouth *'' Stenotrema blandianum'' (Pilsbry, 1903) — Missouri slitmouth *'' Stenotrema brevipila'' (Clap, 1907) — Talladega slitmouth *'' Stenotrema burringtoni'' (Grimm, 1971) *'' Stenotrema calvescens'' (Hubricht, 1961) — Chattanooga slitmouth *'' Stenotrema cohuttense'' (Clapp, 1914) — Cohutta slitmouth *'' Stenotrema deceptum'' (Clapp, 1905) — Monte Sano slitmouth *'' Stenotrema depilatum'' (Pilsbry, 1895) — Great Smoky slitmouth *'' Stenotrema edgarianum'' (Lea, 1841) — Sequatchie slitmouth *'' Stenotrema edvardsi'' (Bland, 1856) — Ridge-and-valley slitmouth *'' Stenotrema exodon'' (Pilsbry, 1900) — Alabama slitmouth **'' Stenotrema exodon turbinella'' (Clench & Archer, 1933) *'' Stenotrema florida'' (Pilsbry, 1940) — Apalachicola slitmouth *'' Stenotrema hirsutum'' (Say, 1817) — Hairy slitmouth **'' Stenotrema hirsutum barbatum'' (Clapp, 1904) * '' Stenotrema hubrichti'' Pilsbry, 1940 / '' Euchemotrema hubrichti'' (Pilsbry, 1940) — Carinate pillsnail *'' Stenotrema labrosum'' (Bland 1862) — Ozark slitmouth *'' Stenotrema macgregori'' (Dourson, 2011) — Fraudulent slitmouth *'' Stenotrema magnifumosum'' (Pilsbry, 1900) — Appalachian slitmouth *'' Stenotrema maxillatum'' (Gould, 1848) — Ridge-lip slitmouth *''Stenotrema morosum'' (Hubricht, 1978) *'' Stenotrema pilsbryi'' (Ferriss, 1900) — Rich Mountain Slitmouth *'' Stenotrema pilula'' (Pilsbry, 1900) — Pygmy slitmouth *'' Stenotrema simile'' (Grimm, 1971) — Bear Creek slitmouth *'' Stenotrema spinosum'' (Lea, 1830) — Carinate slitmouth *'' Stenotrema stenotrema'' (Pfeiffer, 1842) — Inland slitmouth *'' Stenotrema unciferum'' (Pilsbry, 1900) — Ouachita slitmouth **'' Stenotrema unciferum caddoense'' (Archer, 1935) *'' Stenotrema waldense'' (Archer, 1938) — Doaks Creek slitmouth See '' Euchemotrema'' for other closely related taxa, many of which are sometimes placed in ''Stenotrema''.

References

{{Authority control Polygyridae Taxa named by Constantine Samuel Rafinesque Taxonomy articles created by Polbot Gastropod genera