Viviparus contectus, common name Lister's river snail, is a species of large, freshwater snail with an operculum and a gill, an aquatic gastropod mollusk in the family Viviparidae, the river snails.
Distribution This is not a native of the UK. This species is palaearctic in distribution, specifically Europe and western Siberia, including:
Great Britain, specifically eastern England Netherlands Germany - endangered (3 gefährdet) Austria Czech Republic - near threatened (NT) Slovakia Russia - Sverdlovsk oblast
Habitat This large snail lives in slow flowing rivers and canals which are unpolluted, and which have hard water with many water weeds.
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