Planorbarius

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

Species
Species within this genus include:
 * † Planorbarius barettii (Sacco, 1886)
 * † Planorbarius borellii (Brusina, 1892)
 * Planorbarius corneus (Linnaeus, 1758)
 * † Planorbarius cornu (Brongniart, 1810)
 * † Planorbarius cornucopia (Baily, 1858)
 * † Planorbarius crassus (Serres, 1844)
 * † Planorbarius garsdorfensis Schlickum & Strauch, 1979
 * † Planorbarius halavatsi Neubauer, Harzhauser, Kroh, Georgopoulou & Mandic, 2014
 * † Planorbarius heriacensis (Fontannes, 1876)
 * † Planorbarius incrassatus (Rambur, 1862)
 * † Planorbarius isseli (Sacco, 1886)
 * † Planorbarius mantelli (Dunker, 1848)
 * † Planorbarius margoi (Lörenthey, 1894)
 * Planorbarius metidjensis (Forbes, 1838)
 * † Planorbarius philippei (Locard, 1883)
 * † Planorbarius praecorneus (Fischer & Tournouër, 1873)
 * † Planorbarius reticulatus Roshka, 1973
 * † Planorbarius romani (Jodot, 1958)
 * † Planorbarius royoi (Jodot, 1958)
 * † Planorbarius sansaniensis (Noulet, 1854)
 * † Planorbarius solidus (Thomä, 1845)
 * † Planorbarius striatus Roshka, 1973
 * † Planorbarius sulekianus (Brusina, 1874)
 * † Planorbarius thiollieri (Michaud, 1855)
 * † Planorbarius turkovici (Gorjanović-Kramberger, 1899)
 * † Planorbarius vezici (Brusina, 1897)
 * † Planorbarius villatoyensis (Jodot, 1958)
 * Species brought into synonymy:
 * † Planorbarius borelli (Brusina, 1892): synonym of † Planorbarius borellii (Brusina, 1892)
 * † Planorbarius cornus (Brongniart, 1810): synonym of † Planorbarius cornu (Brongniart, 1810)
 * † Planorbarius grandis (Halaváts, 1903): synonym of † Planorbarius halavatsi Neubauer, Harzhauser, Kroh, Georgopoulou & Mandic, 2014
 * † Planorbarius thiollierei (Michaud, 1855): synonym of † Planorbarius thiollieri (Michaud, 1855)

Description
All species within family Planorbidae have sinistral shells.