Cochliopidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks.
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Paludestrina d'Orbigny, 1840 is an archaic synonym,[1] and has been placed on the Official Index of Rejected and Invalid Names by ICZN Opinion 2202.[2]
This family is in the superfamily Truncatelloidea and in the order Littorinimorpha (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
Cochliopidae snails are characterized by sharp, elongated spire-like structures, and can be found in rivers or brackish water.[1]
The family Cochliopidae consists of 3 subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):[3]
- Cochliopinae Tryon, 1866 - synonyms: Mexithaumatinae D. W. Taylor, 1966, Paludiscalinae D. W. Taylor, 1966
- Littoridininae Thiele, 1928
- Semisalsinae Guiusti & Pezzoli, 1980 - synonym: Heleobiini Bernasconi, 1991
Liu et al. (2001)[4] have recognized 34 genera with more than 260 species within the subfamily Cochliopinae.[4]
Strong et al. (2008)[5] have recognized 246 freshwater species within Cochliopidae.[5]
Genera within the family Cochliopidae include:
subfamily Cochliopinae
subfamily Littoridininae
subfamily Semisalsinae - there are three genera in the subfamily Semisalsinae[8]
subfamily ? (either Cochliopinae or Littoridininae)
- Aroapyrgus H. B. Baker, 1931
- Balconorbis Hershler & Longley, 1986
- † Carinulorbis Yen, 1949
- Chorrobius Hershler, Liu & Landye, 2011[7]
- Dyris Conrad, 1871 - it has extant species and also 26 species in Miocene Pebas Formation[9]
- Emmericiella Pilsbry, 1909
- Eremopyprgus Hershler, 1999[10][11]
- † Feliconcha Wesselingh, Anderson & Kadolsky, 2006 - two species from Miocene of the Pebas Formation[9]
- Feliconcha feliconcha Wesselingh, Anderson & Kadolsky, 2006[9]
- Feliconcha reticulata Wesselingh, Anderson & Kadolsky, 2006[9]
- (probably extant)[9] Glabertryonia Wesselingh, Anderson & Kadolsky, 2006 - three species[9]
- † Glabertryonia glabra Wesselingh, Anderson & Kadolsky, 2006 - from Miocene of the Pebas Formation[9]
- † Glabertryonia sp. 1 - from Pliocene of the Las Piedras Formation[9]
- (probably extant) Glabertryonia sp. 2 - from Holocene of Surinam, probably extant[9]
- Juturnia Hershler, Liu & Stockwell, 2002
- Lithococcus Pilsbry, 1911
- Mesobia F. G. Thompson & Hershler, 1991
- Mexipyrgus Taylor, 1966
- Minckleyella Hershler, Liu & Landye, 2011[7] - with the only species Minckleyella balnearis Hershler, Liu & Landye, 2011[7]
- Onobops Thompson, 1968[9]
- Pyrgophorus Ancey, 1888[9]
- Sioliella Haas, 1949
- Spurwinkia Davis, Mazurkiewicz & Mandracchia, 1982
- Texadina Abbott & Ladd, 1951
- Thalassobia Bourguignat in Mabille, 1877
A cladogram based on sequences of mitochondrial cytochrome-c oxidase I (COI) genes showing phylogenic relations of species within Cochliopidae:[4]
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Cochliopina riograndensis |
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Eremopyrgus eganensis |
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Zetekina sp. 1, Zetekina sp. 2 |
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"Tryonia" robusta |
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Kabat A. R. & Hershler R. (1993). "The prosobranch snail family Hydrobiidae (Gastropoda: Rissooidea): review of classification and supraspecific taxa". Smithsonian Contributions to Zoology 547: 1-94. PDF. Kroll O., Hershler R., Albrecht C., Terrazas E. M., Apaza R., Fuentealba C., Wolff C. & Wilke T. (2012). "The endemic gastropod fauna of Lake Titicaca: correlation between molecular evolution and hydrographic history". Ecology and Evolution 2(7): 1517-1530. doi:10.1002/ece3.280. Wesselingh F. P., Anderson L. C. & Kadolsky D. (2006). "Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia". Scripta Geologica 1333: 19-290. PDF. Hershler R., Liu H.-P. & Landye J. J. (2002). "A new species of Eremopyprgus (Hydrobiidae: Cochliopinae) from the Chihuahuan desert, Mexico: Phylogentic relationships and biogeography". Journal of Molluscan Studies 68: 7-13. PDF. Hershler R. (1999). "A systematic review of the hydrobiid snails (Gastropoda: Rissoidea) of the Great Basin, western United States. Part II. Genera Colligyrus, Fluminicola, Pristinicola, and Tryonia". The Veliger 42(4): 306-337. PDF Archived 2012-03-27 at the Wayback Machine.
