Ancylus
Ancylus is a genus of very small, freshwater, air-breathing limpets. They are aquatic pulmonate gastropod mollusks in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies.
The genus is known throughout the Cenozoic.
Species
Species in the genus Ancylus include:Ancylus aduncus A. A. Gould, 1847- † Ancylus alutae Jekelius, 1932 Ancylus ashangiensis Brown, 1965Ancylus benoitianus Bourguignat, 1862
- † Ancylus bourgeoisi Deshayes, 1863
- † Ancylus boyeri Noulet, 1867
- † Ancylus braunii Dunker, 1853 Ancylus capuloides Jan in Porro, 1838
- † Ancylus cestasensis Peyrot, 1932
- † Ancylus depressus Deshayes, 1824
- † Ancylus dumasi Fontannes, 1884
- † Ancylus elegans J. de C. Sowerby, 1826 Ancylus expansilabris Clessin, 1881Ancylus fluviatilis Müller, 1774 - the type species
- † Ancylus hungaricus Brusina, 1902 Ancylus lapicidus Hubendick, 1960
- † Ancylus lyelli Maillard, 1892
- † Ancylus moravicus Rzehak, 1893
- † Ancylus ninghaiensis Youluo, 1978
- † Ancylus parmophorus de Stefani, 1880 Ancylus pileolusAncylus recurvus Martens, 1873Ancylus regularis Brown, 1973Ancylus rupicola Boubée, 1832
- † Ancylus saucatsensis Peyrot, 1932 Ancylus scalariformis Stankovic & Radoman, 1953
- † Ancylus serbicus Brusina, 1893Ancylus striatus Quoy & Gaimard, 1834Ancylus subcircularis Clessin, 1880
- † Ancylus subcostatus Benoist, 1873Ancylus tapirulus Polinski, 1929
- † Ancylus croaticus Brusina, 1902: synonym of † Acroloxus croaticus
- † Ancylus decussatus Reuss in Reuss & Meyer, 1849: synonym of †Acroloxus decussatus
- † Ancylus deperditolacustris Gottschick, 1911: synonym of † Acroloxus deperditolacustris
- † Ancylus deperditus : synonym of † Ferrissia deperdita Ancylus drouetianus Bourguignat, 1862: synonym of Williamia gussoni Ancylus fuscus C. B. Adams, 1840: synonym of Laevapex fuscus Ancylus gibbosus Bourguignat, 1862: synonym of Williamia gussoni Ancylus gussonii O. G. Costa, 1829: synonym of Williamia gussonii
- † Ancylus illyricus Neumayr, 1880: synonym of †Ferrissia illyrica
- † Ancylus involutus Pavlović, 1903: synonym of † Acroloxus involutus
- † Ancylus michaudi Locard, 1878: synonym of † Acroloxus michaudi
- † Ancylus neumayri Fontannes, 1881: synonym of †Ferrissia neumayri Ancylus patelloides I. Lea, 1856: synonym of Lanx patelloides
- † Ancylus pontileviensis Morgan, 1920: synonym of † Ferrissia pontileviensis
- † Ancylus wittmanni Schlickum, 1964: synonym of † ''Ferrissia wittmanni''