Viviparus acerosus ( Bourguignat, 1862 )

Marković, Vanja, Gojšina, Vukašin, Novaković, Boris, Božanić, Milenka, Stojanović, Katarina, Karan-Žnidaršič, Tamara & Živić, Ivana, 2021, The freshwater molluscs of Serbia: Annotated checklist with remarks on distribution and protection status, Zootaxa 5003 (1), pp. 1-64 : 10

4. Viviparus acerosus ( Bourguignat, 1862)

Findings in Serbia.

Vivipara hungarica : Hesse (1929).

Viviparus danubialis: Tomić (1959) .

Viviparus acerosus maritzanus: Zilch (1955) .

Viviparus acerosus: Jaeckel et al. (1958) ; Arambašić (1994); Karaman (2001, 2012); Karaman & Karaman (2007); Paunović et al. (2008, 2012 a); Marković et al. (2012, 2015); Martinović-Vitanović et al. (2013); Tomović et al. (2014).

Common name. Danube river snail.

Morphology. Large-sized species (shell up to 50 mm). Morphological identification is quite challenging due to close resemblance to other species of the genus, and some other viviparids. The shape of apex, and convexity of subsequent whorls, are considered as main taxonomic characters of adult specimens. Apex is white and pointed, umbilicus is narrow. For more details see Glöer (2019: 61, fig. 52).

Distribution and ecology. Muddy substrate of large slow-flowing rivers, standing waters and canals. Its native distribution range includes the Danube, Dnieper, and Dvina basins ( Vavrova & Van Damme 2011; Vinarski & Kantor 2016). In Serbia mostly found along the Danube, Tisza, Sava and Velika Morava Rivers.

Other remarks. Considered as endangered in northern parts of its areal ( Germany, Austria; Welter-Schultes 2012). Recently has established wild populations in the Netherlands where it is considered as an introduced species ( Soes et al. 2009). On the IUCN Red List it has been assessed as LC ( Vavrova & Van Damme 2011).