Bithynia tentaculata

Bithynia tentaculata, common names the mud bithynia or common bithynia, or faucet snail is a relatively small species of freshwater snail with gills and an operculum, an aquatic prosobranch gastropod mollusk in the family Bithyniidae. Bithynia tentaculata is the type species of the genus Bithynia. Forms of Bithynia tentaculata include: The variety † Bithynia tentaculata var. allobrogica Fontannes, 1881: synonym of † Bithynia minor Locard, 1878 The distribution of Bithynia tentaculata is Palearctic. The species occurs in: