Choanomphalus Explained

Choanomphalus is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids. All species in this genus have sinistral or left-coiling shells.

Species

Species within the genus Choanomphalus include:

• Choanomphalus amauronius Bourguignat, 1860^[1]
  • Choanomphalus amauronius angulatus (B. Dybowski & Grochmalicki, 1925)^[1]
  • Choanomphalus amauronius westerlundianus Lindholm, 1909^[1]
• Choanomphalus annuliformis Kozhov, 1936^[1]
• Choanomphalus anomphalus W. Dybowski, 1901^[2]
• Choanomphalus aorus Bourguignat, 1860^[1]
• Choanomphalus baicalensis^[3]
• Choanomphalus bathybius Beckman & Starobogatov, 1975^[1]
  • Choanomphalus bathybius meridianus Beckman & Starobogatov, 1975^[1]
• Choanomphalus cryptomphalus W. Dybowski, 1901^[2]
• Choanomphalus eurystomus Lindholm, 1909^[2]
• Choanomphalus gerstfeldtianus Lindholm, 1909^[1]
• Choanomphalus grachevi Sitnikova & Röpstorf, 1999^[1]
• Choanomphalus huzhirensis Beckman & Starobogatov, 1975^[1]
• Choanomphalus hyaliniiformis Moskvicheva & Dworiadkin, 1980^[1]
• Choanomphalus incertus Lindholm, 1909^[1]
  • Choanomphalus incertus mesospiralis B. Dybowski & Grochmalicki, 1925^[1]
• Choanomphalus korotnevi Lindholm, 1909^[1]
• Choanomphalus kozhovi Beckman & Starobogatov, 1975^[1]
• Choanomphalus lindholmi Beckman & Starobogatov, 1975^[2]
• Choanomphalus maacki Gerstfeldt, 1859^[2] - type species
  • Choanomphalus maacki andrussowianus (Lindholm, 1909)^[1]
  • Choanomphalus maacki elatior Lindholm, 1909^[1]
• Choanomphalus microtrochus Lindholm, 1909^[2]
• Choanomphalus mongolicus^[4]
• Choanomphalus okhoticus Prozorova & Starobogatov, 1997^[2]
• Choanomphalus omphalotus W. Dybowski, 1901^[2]
• Choanomphalus parvus Kozhov, 1936^[1]
• Choanomphalus patulaeformis Lindholm, 1909^[1]
• Choanomphalus planorbiformis Beckman & Starobogatov, 1975^[1]
• Choanomphalus pygmaeus Lindholm, 1909^[2]
• Choanomphalus schrencki or Choanomphalus schrenkii W. Dybowski, 1875^[1]
• Choanomphalus valvatoides W. Dybowski, 1875^[1]

Synonyms:

• Choanomphalus riparius (Westerlund, 1865)^[1] is a synonym of Gyraulus riparius
• Choanomphalus rossmaessleri (Auerswald in A. Schmidt, 1851)^[1] is a synonym of Gyraulus rossmaessleri

Notes and References

1. Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories". Version 2.3.1.
2. IUCN (2013). IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 16 May 2014.
3. https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=65078&lvl=3&lin=f&keep=1&srchmode=1&unlock Choanomphalus baicalensis
4. Sitnikova T. Ya. (1999). "Variability of the gastropod mollusk Choanomphalus mongolicus shell from Lake Hovsgol". Russian Journal of Zoology 78(7): 413-4??. abstract