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Systematic malacology according to J.Thiele

Order Basommatophora Eyes on the head without tentacles

Superfamily Actophila Shell spiral with high spire,no operculum Family Ellobiidae Shell dextral,oval-cylinder shaped,sole of foot divided in some genera by a transverse furrow Subfamily Pedipedinae Subfamily Carychiinae Carychium(Muller,1774) Zospeum Subfamily Ellobiinae Melampus(Montfort,1810) Cassidula(Ferussac,1821) Pythia(Roding,1798) Ellobium(Roding,1798)

Superfamily Hygrophila Family Chilinidae Chilina Family Latiidae Latia(Gray,1849):New Zealand Family Physidae Aplexa(Fleming,1820):Central America,northern Europe,Asia(image right) Physa(Draparnaud,1801) Family Lymnaeidae Subfamily Lymnaeinae Lymnaea(Lamarck,1799) Subgenus Galba(Schrank,1803) Subgenus Stagnicola(Leach,1830) Subgenus Pseudisidora Subgenus Pseudosuccinea(Baker,1908) Subgenus Bulimnae(Haldeman,1841) Subgenus Radix(Montfort,1810) Subgenus Lymnaea s. s Subgenus Acella(Haldeman,1841) Myxas(Sowerby,1822) Erinna(Adams,1858) Subgenus Erinna Subfamily Lancinae Lanx(Clessin,1882):North-America

Family Planorbidae Isidora(Ehrenberg,1831) Subgenus Isidora s. s Subgenus Physopsis(Krauss,1848):Africa Camptoceras(Benson,1843):India,Japan Miratesta(Sarasin,1897):Celebes Planorbis(Muller,1774) Carinifex(Binney,1863):North-America Pompholycodea(Lindholm,1927):North-America Neoplanorbis(Pilsbry,1906):North-America Planorbula(Haldeman,1842) Anisus(Studer,1820) Subgenus Tropidiscus(Stein,1850) Subgenus Anisus s. s Subgenus Gyraulus(Charpentier,1837)(image right) Subgenus Bathyomphalus(Charpentier,1837) Subgenus Armiger(Hartmann,1843) Subgenus Hippeutis(Charpentier,1837) Subgenus Segmentina(Fleming,1822) Subgenus Intha(Annandale,1922) Choanomphalus(Gerstfeldt,1859)

Family Ancylidae Subfamily Ancylinae Protancylus(Sarasin,1897) Subgenus Protancylus s. s Subgenus Burnupia(Walker,1912) Subgenus Ferrisia(Walker,1903) Subgenus Gundlachia(Pfeiffer,1849) Amphigyra(Pilsbry,1906):North-America Ancylus(Muller,1774) Rhodacmea(Walker,1917) Subfamily Acoloxinae Acroloxus(Beck,1837) Pseudancylastrum(Lindholm,1909):Lake Baikal

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