18. Bythinella serborientalis Radoman, 1978

Findings in Serbia.

Bythinella serborientalis: Radoman (1978, 1983); Jovanović (1991, 1995).

Morphology. Minute snails, up to 3 mm high. Shell is ovoid, with blunt apex. Aperture is pear-shaped, suture is deep, umbilicus mostly slit-like. For more details see Radoman (1983: 179, pl. 12, fig. 211).

Distribution and ecology. Serbian endemic species known from only one locality. Type locality Vrelo Spring (Pirot Municipality, Balkan Mtn.).

Other remarks. On the IUCN Red List of threatened species this taxon has been assessed as DD (Seddon 2011 b). The species is protected on national level (Annex 1-strictly protected species; Official Gazette of RS 5/2010, 47/2011, 32/2016, 98/2016).