桶瓶螺，软体动物门-腹足纲-中腹足目-瓶螺科。维基百科Pila is a genus of large freshwater snails with an operculum, African and Asian apple snails, aquatic gastropod mollusks in the family Ampullariidae, the apple snails.Distribution[edit]Distribution of the genus Pila include Africa, Madagascar, southern Asia and Indo-Pacific islands.[3]Species[edit]Species within the genus Pila include:subgenus PilaPila africana (v. Martens, 1886)[2][3]Pila ampullacea (Linnaeus, 1758) - type species[2][3]Pila brohardi (Granger, 1892)[2]Pila cecillei (Philipi, 1848)[2][3]Pila conica (Gray, 1828)[2]Pila globusa (Swainson, 1828)[2]Pila occidentalis (Mousson, 1887)[2][3]Pila ovata (Oliver, 1804)[2][3]Pila pesmei (Morelet, 1889)[2]Pila polita (Deshayes, 1830)[2]Pila saxea (Reeve, 1856)[2]Pila scutata (Housson, 1848)[2]Pila speciosa Philippi, 1849[2][3]Pila virens (Lamarck)[2]Pila wernei (Philipi, 1851)[2][3]subgenus Turbinicola Annandale & Prashad, 1921[4]Pila aperta (Prashad, 1925)[2]Pila (Turbinicola) saxea (Annandale & Prashad,