Montenegrina haringae, Feher, Zoltan & Szekeres, Miklos, 2016

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 : 30

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina haringae sp. n. Fig. 15A

Diagnosis.

Small to medium-size species with broadly attached peristome, broadly-bent lamella subcolumellaris, dorsal lunella, and weak, separate basalis.

Description.

The small to medium-size, tumid, light corneous shell consists of 8 to 9½ whorls. The entire surface is opaque and smooth, except for the inflexed neck that is weakly costate behind the aperture. The basal and peripheral crests are weak. The aperture is ovoid, somewhat angular, broadly attached, with simple peristome margin. The long lamella superior only barely overlaps with the spiralis. In front view the lamella inferior is moderately emerged, the end of the broadly-bent subcolumellaris is usually visible. The dorsal lunella is separate from the weak, lump-like basalis. The subclaustralis is absent, the sulcalis is residual or also absent. The anterior part of the plica superior is absent or weak, non-parallel to the principalis, separate from the lunella complex. The narrow clausilium plate is partly visible through the aperture, its proximal half is obscured by the deep-emerged lamella inferior.

Dimensions

(in mm). Holotype Hs: 14.8, Ws: 4.3, Ha: 3.6, Wa: 2.9; paratypes (NHMW 111220, n =12): Hs: 12.5-17.4 (mean 14.7, S.D. 1.44), Ws: 3.7-4.8 (mean 4.4, S.D. 0.26), Ha: 3.3-4.1, Wa: 2.9-3.7 mm.

Differential diagnosis.

Compared to species of the surrounding coastal regions, the new taxon can be distinguished from both Montenegrina cattaroensis and Montenegrina subcristata by its smaller size, less deep lunella, missing subclaustralis and weak or absent anterior plica superior. From all other species of the genus differs by the combination of a dorsal lunella and the absence of subclaustralis.

Type locality.

Albania, Shkodër District, Mt. Renc, dry gorge S of Baks-Rjollë, (SW of the Maja e Zezë), 30 m, 41.8577°N, 19.4923°E.

Type material.

Type locality, leg. TD, ZE, ZF, 27.v.2015, holotype (NHMW 111219), paratypes (NHMW 111220/65, HNHM 99483/61, MMM-B01324/61, SZ/5); above Baks-Rjollë, S slope of the Maja e Zezë, 100 m, 41.8569°N, 19.5044°E, leg. ZB, DP, GP, 4.v.2014, paratypes (HNHM 99061/4, SZ/1).

Etymology.

The new species is named after Elisabeth Haring, head of the Central Research Laboratories at NHMW, who provided support and inspiration to this study.

Distribution.

Mt. Renc in northwestern Albania (Fig. 17).