Montenegrina okolensis 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

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina okolensis Szekeres, 2006

Diagnosis.

Shell small to medium, elongate, light to dark corneous. All whorls smooth. Neck inflexed, almost smooth, basal and peripheral crests weak. Peristome attached, ovoid to somewhat angular, with somewhat swollen margin. Lamella superior absent to residual and distant from the spiralis. In front view lamella inferior hidden to weakly emerged. Medium-bent subcolumellaris only obliquely visible. Lunella dorsal-dorsolateral to dorsolateral. Basalis and subclaustralis absent. Sulcalis present or only residual. Anterior plica superior mostly absent. Clausilium plate visible through the aperture. Distinguishable from Montenegrina apfelbecki by the attached peristome and reduced lamellae.