Montenegrina okolensis caesia Feher & Szekeres, 2006

Feher, Zoltan & Szekeres, Miklos, 2016, Taxonomic revision of the rock-dwelling door snail genus Montenegrina Boettger, 1877 (Mollusca, Gastropoda, Clausiliidae), ZooKeys 599, pp. 1-137 : 60-61

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina okolensis caesia Feher & Szekeres, 2006 Fig. 24E

Montenegrina apfelbecki caesia Fehér & Szekeres, 2006 in Erőss et al. 2006: 185, fig. 3.

Montenegrina janinensis caesia (partim) - Nordsieck 2009: 75.

Diagnosis.

Shell small, tumid. In front view lamella inferior hidden. Lunella dorsal-dorsolateral. Sulcalis residual. Anterior plica superior absent. Clausilium plate almost entirely visible through the aperture.

Dimensions

(in mm). Hs: 12.2-16.3 (holotype 14.3), Ws: 3.9-4.8 (holotype 4.5 mm).

Type locality.

Albania, Prokletije Mts, N side of the Qafa e Tërthorës, 11 km from Bogë toward Theth, 1800 m, 42.392°N, 19.730°E.

Type material.

Type locality, leg. ZE, ZF, JK, DM, 20.x.2002, holotype (HNHM 94835), paratypes (NHMUK 20050215, HNC 63179, HNHM 94836/53, NHMW 103273, RMNH 100313, SMF 328077, NMBE 534893/4).

Distribution.

Central part of the Prokletije Mts in northern Albania. Known only from the type locality (Fig. 26).

Remarks.

Originally Montenegrina okolensis okolensis and Montenegrina okolensis caesia were described as subspecies Montenegrina apfelbecki , with which they share similar plicae. However, their reduced clausiliar apparatus and isolated occurrence supports their classification within a separate species, which seems more closely related to other north Albanian representatives of the genus (e.g. Montenegrina prokletiana sp. n.).