Belgrandiella angelovi Pintér, 1968

Material examined: 24 adults, 20.09.2009, Stara Planina Mts., west of Gabrovo town, near village of Zeleno Darvo, two springs in Fagus sylvatica forest, UTM LH53, D. Georgiev leg.

Diagnosis: The main characters discerning this species from the similar Belgrandiella zagoraensis Glöer & Georgiev 2009 living in Sarnena Sredna Gora Mt are the opaque shell, the ovally broad aperture with louvered outer margin (versus non opaque shell, oval aperture with vertical outer margin) (Fig. 2).

Discussion: The anatomy of B. angelovi was not known till now (Pintér 1968). Here we can note down that our specimens had white mantle and a simple regularly broad penis (1 spec. dissected), sharply tapered at its distal part (which also discerns this species from the similar B. zagoraensis which distal penis part is tapered) (Fig. 2). The last character surely puts this species into the genus Belgrandiella .