Valvatidae
a live Valvata piscinalis
Drawing of apertural and umbilical views of a shell of Valvata cristata.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Superfamily:	Valvatoidea
Family:	Valvatidae J. E. Gray, 1840[1]
Diversity[2]
71 freshwater species
Synonyms
Borystheniinae Starobogatov, 1983

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

The family Valvatidae has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

The type genus of this family is Valvata O.F. Müller, 1774.

Genera in the family Valvatidae include:

• Andrussovia Brusina, 1903
• Borysthenia Lindholm, 1933
• Costovalvata Polinski, 1932
• Liratina Lindholm, 1906^{[citation needed]}
• Megalovalvata Lindholm, 1906
• Valvata Müller, 1774
  • Cincinna Hübner, 1810 - It is recognized either as genus^[3] of a subgenus of Valvata.

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.^{[citation needed]}

Haszprunar G (2014) A nomenclator of extant and fossil taxa of the Valvatidae (Gastropoda, Ectobranchia). ZooKeys 377: 1–172. https://www.pensoft.net/J_FILES/1/articles/6032/6032-G-3-layout.pdf

Wikimedia Commons has media related to Valvatidae.

• Hannibal H. (1910). Valvatidae of the Western North America. The Nautilus, page 104-107.