Cepaea cf. eversa Deshayes, 1851

Salvador, Rodrigo B., 2014, The fossil land and freshwater snails of Gündlkofen (Middle Miocene, Germany), Zootaxa 3785 (2), pp. 271-287 : 277

Cepaea cf. eversa Deshayes, 1851

( Figs. 15–16)

Helix eversa Deshayes, 1851: 395 (pl. 1, figs. 5–7). Cepaea eversa eversa: Wenz, 1923: 617 .

Cepaea eversa larteti: Gall, 1980: 60 .

Cepaea eversa: Hír & Kókay, 2004: 89 .

Cepaea cf. eversa : Salvador, 2013b: 162 (figs. 10–13).

Material examined. BSPG 1952 XVIII 8 (19 spcm.)

Description. Shell large, 4½ to 4¾ whorls. Protoconch flattened, smooth; transition to teleoconch unclear. Teleoconch smooth, except for growth lines. Suture well-marked. Whorl profile flat on first whorls. Body whorl rounded, slightly bent downwards near aperture. Aperture prosocline, rounded. Peristome reflexed; slightly thickened on basal and columellar regions. Umbilicus imperforate.

Previous identification of the material. Gall (1980: Nr. 15): Cepaea eversa larteti (Boissy) .

Discussion. The present specimens from Sandelzhausen compare reasonably well with C. eversa and can be differentiated from the specimens of C. cf. sylvestrina Schlotheim (see below) by a larger size, a higher spire, a rounder aperture and one quarter to one half additional whorl. Nevertheless, the specimens of C. eversa from Gündlkofen are always larger, also with half whorl more, than typical specimens. Nevertheless, as common in the genus, C. eversa seems to be a very variable species regarding shell morphology ( Hír & Kókay 2004). It is a frequent species in Middle Miocene (MN 5–7) deposits of Central and Western Europe ( Hír & Kókay 2004).

Paleoecological remarks. Recent Cepaea have too broad a range of habitats ( Welter-Schultes 2012) to be useful for a paleoenvironmental analysis.