Belgrandiella cf. koprivnensis Radoman, 1975

Osikowski, Artur, Hofman, Sebastian, Rysiewska, Aleksandra, Sket, Boris, Prevorčnik, Simona & Falniowski, Andrzej, 2018, A case of biodiversity overestimation in the Balkan Belgrandiella A. J. Wagner, 1927 (Caenogastropoda: Hydrobiidae): molecular divergence not paralleled by high morphological variation, Journal of Natural History 52 (5 - 6), pp. 323-344 : 340

Belgrandiella cf. koprivnensis Radoman, 1975

( Figure 3s, t )

Diagnosis

Shell ovate, broad, spire high and broad, apex blunt, whorls rather flat, aperture ovoid, narrow, with an angle at its upper right side, peristome continuous, parietal lip well developed, umbilicus slit-like, outer lip simple.

Type material

Locus typicus: the Krčana spring, about 2 km from the road Cazin-Bužim, near the Donja Koprivna village , Bosnia and Herzegovina .

Distribution

Endemic to Bosnia and Herzegovina.

Despite reservations concerning species determinations, four nominal species ( B. krupensis , B. robusta , B. umbilicata and B. zermanica ) and one genus ( Boleana ) must be synonymised with Belgrandiella kusceri , and there are no more than four valid biological species in the studied Belgrandiella . So, as noted already by Falniowski and Beran (2015), the level of endemism is markedly overestimated in Belgrandiella snails.

Figures

Figure 3. Shells of Belgrandiella: (a–f) molecular clade A: (a–d) Belgrandiella cf. robusta, spring of river LipsenjŠČica, Cerknica; (e, f) Belgrandiella cf. robusta, Dvorce, Čatež ob Savi; (g) Boleana umbilicata, topotype, spring MoČilnik; (h, i) molecular clade B: Belgrandiella cf. kuesteri, PotoČe; (j–r) molecular clade C: (j) Belgrandiella cf. fontinalis, PotoČe; (k–r) Belgrandiella cf. fontinalis, Babja luknja; (s, t) molecular clade D: Belgrandiella cf. koprivnensis, Izvor Plive 1A, DraganiĆ. Scale bar represents 1 mm.