Anisus

Anisus is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.^[2]

Anisus
Shells of Anisus vorticulus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Superorder:	Hygrophila
Family:	Planorbidae
Subfamily:	Planorbinae
Tribe:	Planorbini
Genus:	Anisus H. Studer, 1820[1]
Synonyms[2]
List Anisus (Anisus) S. Studer, 1820; accepted, alternate representation Anisus (Costorbis) Lindholm, 1926; accepted, alternate representation Anisus (Disculifer) C. R. Boettger, 1944; accepted, alternate representation † Anisus (Odontogyrorbis) Lörenthey, 1906; (junior synonym) † Anisus (Pseudocarinogyraulus) Popova & Starobogatov, 1970; accepted, alternate representation Anisus (Spiralina) Martens, 1899; (junior homonym of Spiralina Chaster, 1898; junior synonym) Anisus (Vorticulus) Prozorova & Starobogatov, 1997; (junior subjective synonym) † Odontogyrorbis Lörenthey, 1906; (junior subjective synonym) Paraspira Dall, 1905; (junior subjective synonym) † Paraspira (Odontogyrorbis) Lörenthey, 1906; (junior synonym) Paraspira (Paraspira) Dall, 1905; (junior synonym) Planorbis (Anisus) Studer, 1820; (original name) Planorbis (Costorbis) Lindholm, 1926; (original rank) Planorbis (Diplodiscus) Westerlund, 1897; (junior homonym of Diplodiscus Diesing, 1835) † Planorbis (Odontogyrorbis) Lörenthey, 1906; (junior synonym) Planorbis (Spiralina) von Martens, 1899; (junior homonym of Spiralina Chaster, 1898) Planorbis (Rotundatusiana) Germain, 1903; (junior synonym) Planorbis (Spiralina) E. von Martens, 1899; (junior homonym of Spiralina Chaster, 1898) Planorbis (Spirorbis) Swainson, 1840; (junior homonym of Spirorbis Daudin, 1800 [Polychaeta]; junior synonym) † Pseudocarinogyraulus Popova & Starobogatov, 1970; (superseded rank) Spiralina Martens, 1899 (junior homonym of Spiralina Chaster, 1898; junior synonym) Spirulina; (misspelling)

Species

The genus contains the following species:^[2]

Extant

• Anisus bachlongviensus Saurin, 1960
• Anisus centrogyratus (Westerlund, 1875)
• Anisus leucostoma (Millet, 1813)
• Anisus pauxillus van Benthem Jutting, 1963
• Anisus ressmanianus (Westerlund, 1875)
• Anisus sarasinorum (Bollinger, 1914)
• Anisus septemgyratus (Rossmässler, 1835)
• Anisus spirorbis (Linnaeus, 1758) - the type species of the genus^[3]
• Anisus strauchianus (Clessin, 1884)^[3]
• Anisus vortex (Linnaeus, 1758)^[3]
• Anisus vorticulus (Troschel, 1834)^[3]

Extinct

• † Anisus altaicus Popova & Starobogatov, 1970
• † Anisus angulatus (Clessin, 1877)
• † Anisus arltungae McMichael, 1968
• † Anisus balizacensis (Peyrot, 1932)
• † Anisus bicarinatus Szőts, 1953
• † Anisus brunnensis (Sauerzopf, 1953)
• † Anisus coislinensis (Sauerzopf, 1953)
• † Anisus confusus Soós, 1934
• † Anisus densecostatus Schütt, 1994
• † Anisus deviatkini Popova & Starobogatov, 1970
• † Anisus dupuyianus (Noulet, 1854)
• † Anisus falsani (Locard, 1883)
• † Anisus guerichi (Andreae, 1902)
• † Anisus gulmargensis Bhatia, 1975
• † Anisus hilgendorfi (Fraas, 1868)
• † Anisus karkaraensis (Schlosser, 1906)
• † Anisus komarovae Prysjazhnjuk, 1974
• † Anisus krambergeri (Halaváts, 1903)
• † Anisus laskarevi Milošević, 1976
• † Anisus lentiformis Popova & Starobogatov, 1970
• † Anisus lungershauseni Popva & Starobogatov, 1970
• † Anisus mariae (Michaud, 1862)
• † Anisus metochiensis Milošević, 1976
• † Anisus nechoroshevi Popova & Starobogatov, 1970

• † Anisus omalus (Bourguignat, 1881)
• † Anisus paritus Y.-T. Li, 1986
• † Anisus pseudoplanulatus Szőts, 1953
• † Anisus pseudosubangulatus Szőts, 1953
• † Anisus racovetzae Popova & Starobogatov, 1970
• † Anisus ressmanianus (Westerlund, 1875)
• † Anisus rousianus (Noulet, 1854)
• † Anisus saddaritanus (Pallary, 1901)
• † Anisus septemgyratiformis (Gottschick, 1911)
• † Anisus subanguloides H.-J. Wang, 1982
• † Anisus thomasi (Pallary, 1901)
• † Anisus trapeziiformis Popova & Starobogatov, 1970
• † Anisus tuerykensis Popova & Starobogatov, 1970
• † Anisus vorticoides (Martinson, 1954)
• † Anisus weizhouensis H.-J. Wang, 1982

Uncertain (Taxon Inqurendum)

• Anisus dietmari Schütt, 1973
• Anisus issykulensis (Clessin, 1907)
• Anisus calculiformis (Sandberger, 1874)

Subspecies and species brought into synonymy (Selection)

• Subgenus Anisus (Gyraulus) Agassiz in Charpentier, 1837: synonym of Gyraulus Charpentier, 1837
• Anisus (Gyraulus) terekholicus Prozorova & Starobogato, 1997: synonym of Gyraulus terekholicus (Prozorova & Starobogatov, 1997)
• Subgenus † Anisus (Odontogyrorbis) Lörenthey, 1906: synonym of Anisus (Anisus) Studer, 1820
• Subgenus Anisus (Spiralina) Martens, 1899: synonym of Anisus Studer, 1820
• † Anisus angustigyratus (Sauerzopf, 1953): synonym of † Anisus (Anisus) krambergeri (Halaváts, 1903)
• † Anisus dupuyanus (Noulet, 1854): synonym of † Anisus dupuyianus (Noulet, 1854)
• Anisus septemgyratus auct. (not Rossmässler):^[3] synonym of Anisus calculiformis (Sandberger, 1874)
• Anisus tokyoensis Mori, 1938: synonym of Gyraulus tokyoensis (Mori, 1938)