45. Radix auricularia (Linnaeus, 1758)

Findings in Serbia.

Melanopsis auricularis: Möllendorff (1873) .

Gulnaria auricularia: Tomić (1959) .

Lymnaea (Radix) auricularia: Karaman (2001, 2001 a).

Lymnaea auricularia: Arambašić (1994); Simić (1996); Simić & Simić (2004); Planojević et al. (2010); Marković et al. (2012).

Radix auricularia: Frank et al. (1990); Jovanović (1990); Karaman (2005); Karaman & Karaman (2007); Marković et al. (2013, 2015); Martinović-Vitanović et al. (2013); Novaković (2013, pers. comm. 2014-2018); Savić et al. (2016); Stojanović (2017).

Common name. Big-ear radix.

Morphology. Medium-sized to large snails (shell up to 30 mm high). Spire is short, pointed and very small, aperture is ear-shaped, umbilicus is closed. For more details see Glöer (2019: 236, figs 294–295).

Distribution and ecology. Palearctic species, up to 1900 m.a.s.l (in Serbia up to 750 m. a.s.l.). Stagnant and slow-flowing waters rich with vegetation (Welter-Schultes 2012). In Serbia, one of the common species. It has been reported from the Danube, Sava, Tamiš, Karaš, Velika Morava, Nišava, Južna Morava, Zapadna Morava, Lepenica, Rasina, Rača, Mlava, Radovanska reka Rivers, Zasavica and Pančevački rit Wetlands and Savsko jezero Lake. It has been recorded in the Tisza and Kireš (Körös) Rivers in Vojvodina as well (Novaković pers. comm. 2014-2018).

Other remarks. The type species of the genus Radix . Highly variable morphology, with many forms described, two of those are Radix . a.tumida and R. a.subampla (more details in Glöer 2019). On the IUCN Red List of threatened species it has been assessed as LC (Seddon et al. 2014).