About Viviparus contectus (Millet, 1813)
Viviparus contectus, commonly known as Lister's river snail, is a species of large, freshwater operculate snail with gills. It is an aquatic gastropod mollusk that belongs to the Viviparidae family, the river snails. This species is not native to the UK. It has a Palaearctic distribution across Europe and western Siberia, with recorded presence in specific regions: Great Britain (specifically eastern England), Netherlands, Germany (where it is listed as endangered, 3 gefährdet), Austria, Czech Republic (where it is listed as near threatened, NT), Slovakia, and Russia (specifically Sverdlovsk Oblast). This large snail inhabits slow-flowing, unpolluted rivers and canals that have hard water with abundant aquatic weeds.
