Cochliopidae

Cochliopidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks. Paludestrina d'Orbigny, 1840 is an archaic synonym,[2] and has been placed on the Official Index of Rejected and Invalid Names by ICZN Opinion 2202.[3]

Cochliopidae
A live individual of Antrobia culveri
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Truncatelloidea
Family:
Cochliopidae

Tryon, 1866
Diversity[1]
246 freshwater species
Synonyms

Semisalsinae Giusti & Pezzoli, 1980

This family is in the superfamily Truncatelloidea and in the clade Littorinimorpha (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

Description

Cochliopidae snails are characterized by sharp, elongated spire-like structures, and can be found in rivers or brackish water.[2]

2005 taxonomy

The family Cochliopidae consists of 3 subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):[4]

  • 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

Genera

Liu et al. (2001)[5] have recognized 34 genera with more than 260 species within the subfamily Cochliopinae.[5]

Strong et al. (2008)[1] have recognized 246 freshwater species within Cochliopidae.[1]

Genera within the family Cochliopidae include:

subfamily Cochliopinae

subfamily Littoridininae

  • Antrobia Hubricht, 1971 - with the only species Antrobia culveri Hubricht, 1971[6] - Tumbling Creek cavesnail
  • Littoridina Souleyet, 1852
  • Pseudotryonia Hershler, 2001[7]
    • Pseudotryonia adamantina[7]
    • Pseudotryonia alamosae[7]
    • Pseudotryonia brevissima[7]
    • Pseudotryonia grahamae[7]
    • Pseudotryonia mica Hershler, Liu & Landye, 2011[7]
    • Pseudotryonia pasajae Hershler, Liu & Landye, 2011[7]

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

Cladogram

A cladogram based on sequences of mitochondrial cytochrome-c oxidase I (COI) genes showing phylogenic relations of species within Cochliopidae:[5]

Cochliopidae
 
 
 

Onobops jacksoni

 
 

Heleobops docimus, Heleobops dalmatica

 
 
 
 
 
 

Cochliopina riograndensis

 
 
 

Cochliopa sp.

 
 

Lithococcus multicarinatus

 
 
 
 
 

Mexithauma quadripaludium

 
 

Aroapyrgus sp.

 
 
 
 
 
 
 

Eremopyrgus eganensis

 
 

Zetekina sp. 1, Zetekina sp. 2

 
 
 
 
 

"Tryonia" brevissima, "Tryonia" alamosae

 
 

Aphaostracon sp.

 
 
 
 
 
 

Littoridinops monroensis, Littoridinops palustris

 
 

Pyrgophorus platyrachis

 
 
 
 

"Tryonia" kosteri

 
 

Durangonella coahuilae

 
 
 
 

Spurwikinia salsa

 
 
 
 
 
 

Tryonia clathrata, Tryonia rowlandsi, Tryonia aequicostata

 
 

Mexipyrgus carranzae

 
 
 
 
 
 

"Tryonia" robusta

 
 
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References
  1. Strong E. E., Gargominy O., Ponder W. F. & Bouchet P. (2008). "Global Diversity of Gastropods (Gastropoda; Mollusca) in Freshwater". Hydrobiologia 595: 149-166. hdl:10088/7390 doi:10.1007/s10750-007-9012-6.
  2. Bourguignat, Jules René (1888-01-01). Iconographie malacologique des animaux mollusques fluviatiles du Lac Tanganika (in French). Impr. Crété.
  3. Bouchet, P. (2015). Paludestrina d'Orbigny, 1840. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=558766 on 2015-12-12
  4. 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.
  5. Liu H.-P., Hershler R. & Thompson F. G. (2001). "Phylogenetic Relationships of the Cochliopinae (Rissooidea: Hydrobiidae): An Enigmatic Group of Aquatic Gastropods". Molecular Phylogenetics and Evolution 21(1): 17-25. doi:10.1006/mpev.2001.0988.
  6. 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.
  7. Hershler R., Liu H.-P. & Landye J. J. (2011). "Two new genera and four new species of freshwater cochliopid gastropods (Rissooidea) from northeastern Mexico". Journal of Molluscan Studies 77(1): 8-23. doi:10.1093/mollus/eyq033.
  8. 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.
  9. 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.
  10. 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.
  11. 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.

Further reading
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