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Range DescriptionViviparus contectus is a Palearctic species, occurring over most of the European states in the west, north and east, but much rarer in southern Europe. It is widespread in northern and central Europe, and is recorded from the UK in west of the region, to northern countries of Sweden, Latvia, Estonia and Denmark, through to Germany, Switzerland, south to Italy, Slovenia and east to Greece and Bulgaria.This species is Palearctic in distribution extending to western Siberia (Welter-Schultes 2011). However, the species hybridises with V. ater, thus rendering identification difficult (TrÃ¼b and Ribi 1997). It is also spread across Europe via the aquarium trade (D. van Damme pers. comm. 2012).