Valvatidae

Valvatidae, the valve snails, is a taxonomic family of very small freshwater snails with an operculum, aquatic gastropod mollusks.

Taxonomy

The family Valvatidae has no subfamilies.

Genera

The type genus of this family is Valvata O.F. Müller, 1774.
Genera in the family Valvatidae include:Andrussovia Brusina, 1903Borysthenia Lindholm, 1933Costovalvata Polinski, 1932Liratina Lindholm, 1906Megalovalvata Lindholm, 1906Valvata Müller, 1774

* Cincinna Hübner, 1810 - It is recognized either as genus of a subgenus of Valvata.

Ecology

Snails in the family Valvatidae are useful for measuring water quality as biological indicators. According to the Biological monitoring working party they have a score of 3, which means that they have quite a high tolerance to pollutants.