38. Borysthenia naticina (Menke, 1845)

Findings in Serbia.

Valvata naticina: Frank et al. (1990); Arambašić (1994); Karaman (2001); Paunović et al. (2005, 2007a, 2008).

Borysthenia naticina: Paunović et al. (2012 a); Martinović-Vitanović et al. (2013); Novaković (2013).

Morphology. Minute snails up to 5 mm long/wide. Shell is globular, solid, and consists of 3.5–4 whorls. Aperture is pointed at the top, umbilicus is open. For more details see Welter-Schultes (2012: 46, figure on the top of the page).

Distribution and ecology. Central-European Pontic-Baltic species (Glöer 2019). Prefers fine substrate (sand, mud and sand) in larger rivers and lakes (Welter-Schultes 2012; Zettler 2012). In Serbia, it was recorded in the Danube, Sava and Zapadna Morava Rivers.

Other remarks. In some parts of its range the species is considered critically endangered (Germany and Poland) (Welter-Schultes 2012). On the IUCN Red List of threatened species it has been assessed as LC (Vavrova & Seddon 2011).

Infraclasis Euthyneura Spengel, 1881

Cohort Tectipleura Schrödl et al., 2011

Superorer Hygrophila Férussac, 1822