Pomatiopsis

Pomatiopsis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda; clade Hypsogastropoda; clade Littorinimorpha
Superfamily:	Rissooidea
Family:	Pomatiopsidae
Subfamily:	Pomatiopsinae
Genus:	Pomatiopsis; Tryon, 1862
Type species
	Cyclostoma lapidaria Say, 1817;
Synonyms
	Chilocyclus Gill, 1863 (invalid: junior homonym of Chilocyclus Bronn, 1851)

Pomatiopsis is a genus of amphibious snails with gills and an operculum, aquatic freshwater gastropod mollusks in the family Pomatiopsidae.

Pomatiopsis is the type genus of the family Pomatiopsidae.^[1]

Distribution

The distribution of the genus Pomatiopsis includes the USA: West Coast of the United States, Midwestern United States and Eastern United States.^[3]

Description

In 1862, the American malacologist George Washington Tryon first defined this genus.^[2] Tryon's diagnosis reads as follows:^[2]

Shell elongate, the spire (of about six whorls) much exceeding the length of the aperture.

Species

There are four^[3] species within the genus Pomatiopsis:

Pomatiopsis binneyi Tryon, 1863^[3]
Pomatiopsis californica Pilsbry, 1899^[3]
Pomatiopsis chacei Pilsbry, 1937
Pomatiopsis cincinnatiensis (Lea, 1840)^[3]
Pomatiopsis hinkleyi Pilsbry, 1896
Pomatiopsis lapidaria (Say, 1817) - type species^[3]

Ecology

Species in the genus Pomatiopsis are amphibious, living in humid habitats, on marshy ground and in periodically flooded soil (Pomatiopsis californica and Pomatiopsis lapidaria), in trickling water (Pomatiopsis binneyi) and on mud of streams (Pomatiopsis cincinnatiensis).^[3]

References

This article incorporates public domain text from the reference^[2]

^ ^a ^b Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
^ ^a ^b ^c ^d Tryon G. W. (1862). "Notes on the American Fresh Water Shells, with Description of Two New Species". Proceedings of the Academy of Natural Sciences of Philadelphia 1862: 451-452. page 452.
^ ^a ^b ^c ^d ^e ^f ^g Davis G. M. (1979). "The origin and evolution of the gastropod family Pomatiopsidae, with emphasis on the Mekong river Triculinae". Academy of natural Sciences of Philadelphia, Monograph 20: 1-120. ISBN 978-1-4223-1926-0. at Google Books.

[Bouchet_2005-1] Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.

[Tryon_1862-2] Tryon G. W. (1862). "Notes on the American Fresh Water Shells, with Description of Two New Species". Proceedings of the Academy of Natural Sciences of Philadelphia 1862: 451-452. page 452.

[Davis_1979-3] ^ ^a ^b ^c ^d ^e ^f ^g Davis G. M. (1979). "The origin and evolution of the gastropod family Pomatiopsidae, with emphasis on the Mekong river Triculinae". Academy of natural Sciences of Philadelphia, Monograph 20: 1-120. ISBN 978-1-4223-1926-0. at Google Books.

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