Habitat and Ecology
This species inhabits lakes (Ribi 1986) showing a preference for lentic waters with a weak current and lots of aquatic vegetation.
The females of this species are ovoviviparous and give birth to offspring with a shell width of between 6 to 11 mm (Ribi and Arter 1986). This species reaches sexual maturity in its second year (Ribi 1986), and both sexes can live for ten years or more, growing to approximately 45 mm in shell height (Ribi et al. 1986 in Staub and Ribi 1995). In
This species and V. contectus are sympatric in several places in southern Europe and hybridize naturally where they co-occur, even though they differ in several morphological, karyotypical and life history traits (Ribi and Porter 1995).