Pomatiopsis

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

Pomatiopsis
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Rissooidea
Family:
Pomatiopsidae
Subfamily:
Pomatiopsinae[1]
Genus:
Pomatiopsis

Tryon, 1862[2]
Type species
Cyclostoma lapidaria Say, 1817
Synonyms

Chilocyclus Gill, 1863 (invalid: junior homonym of Chilocyclus Bronn, 1851)

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:

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]

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