6. Viviparus viviparus (Linnaeus, 1758)

Findings in Serbia.

Vivipara vivipara: Hesse (1929).

Viviparus fasciatus: Simić (1993) .

Viviparus viviparus: Jovanović (1990); Arambašić (1994); Karaman (2001, 2012); Simić & Simić (2004); Jakovčev-Todorović et al. (2005); Paunović et al. (2005, 2007a, 2008); Živić et al. (2005); Karaman & Karaman (2007); Planojević et al. (2010); Martinović-Vitanović et al. (2013).

Common name. Common river snail.

Morphology. Large snails (shell up to 40 mm). Shell is usually brown, or yellow, with 3 spiral bands, and 5–6 weakly convex whorls. Apex is blunt, umbilicus is narrow. For more details see Welter-Schultes (2012: 33, figure at the bottom of the page).

Distribution and ecology. Palearctic species widespread across Europe, and quite common in its northern, central, and eastern parts (Seddon 2011 l). It prefers muddy substrate of slow flowing and standing permanent waters (Welter-Schultes 2012). In Serbia, this snail is mostly found in the northern Pannonian part, where it inhabits canals, ponds, and marshes along the large rivers (the Danube and Sava Rivers).

Other remarks. In the late 20 th century it was recorded in the Ob River basin in western/central Siberia (Yanygina 2012). Due to its rapid spreading and abundant populations, it can be considered as an invasive species there (Yanygina 2012). In its native range the species is endangered in Germany, while being rare in some other parts (Poland and Scandinavia; Welter-Schultes 2012). On the IUCN Red List it has been assessed as LC, with the decreasing population trend in Europe (Seddon 2011 a).