Montenegrina hiltrudae selcensis, 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 : 43-45

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina hiltrudae selcensis ssp. n. Fig. 19K

Diagnosis.

Medium-size subspecies with large, very narrowly attached peristome and in front view well visible lamella subcolumellaris.

Description.

The medium-size, light brownish-corneous shell of 9 to 10½ whorls is tumid, with brad basis. The surface is smooth at the lower whorls but becomes indistinctly and densely striate-costate toward the apex. The neck is only very weakly inflexed, behind the peristome it is finely and densely striate. The basal crest is weak, the peripheral crest is not recognizable. The aperture is very large, with the peristome its height reaches one quarter of that of the entire shell. The light whitish-brown peristome is wide, narrowly attached, its margin is swollen, deflexed. The lamellae superior and spiralis overlap. The lamella inferior is strongly emerged, its inner part bends close to the spiralis. The broadly-bent lamella subcolumellaris is visible in front view. The lunella is dorsal-dorsolateral, short and broad, mostly separate from the basalis. The subclaustralis short, the sulcalis is well developed. The anterior part of the plica superior is long, ends in a small lump behind the aperture. Its inner end occasionally extends to the lunella complex. The clausilium plate is entirely visible through the aperture.

Dimensions

(in mm). Holotype Hs: 19.9, Ws: 6.2, Ha: 5.5, Wa: 4.4; paratypes Hs: 16.5-21.4 (mean 19.4, S.D. 1.40), Ws: 5.1-6.2 (mean 5.7, S.D. 0.39), Ha: 4.6-5.8, Wa: 4.0-4.9 (NHMW 111217, NHMW 111218, HNHM 99481, HNHM 99482, n = 12).

Differential diagnosis.

The new subspecies can be distinguished from Montenegrina hiltrudae dennisi and Montenegrina hiltrudae maasseni by its much finer neck sculpture, from Montenegrina hiltrudae fusca by its more conical shell and stronger lamella inferior, from Montenegrina hiltrudae sattmanni by the finer apical and neck sculpture, weaker basalis and more dorsal lunella, whereas from the rest of Montenegrina hiltrudae subspecies by the attached peristome.

Type locality.

Albania, Korçë District, NE of Strelcë, in the limestone gorge of the Lumi i Verbës at the foot of the Shkëmb i Selcës, 990 m, 40.7480°N, 20.5219°E.

Type material.

Type locality, leg. ZF, JG, 30.vi.2014, holotype (NHMW 111216), paratypes (NHMW 111218/1+2a, HNHM 99482/3, GR/2); between Strelcë and Selcë, 1090 m, 40.7462°N, 20.5123°E, leg. DA, ZE, 30.vi.2014, paratypes (NHMW 111217/19+2a, HNHM 99481/20, GR/20, SZ/5).

Etymology.

The new taxon is named after the Selcë Cliff ( Shkëmb i Selcës), its type locality.

Distribution.

Southern part of the Mokër Mts. Two nearby localities are known in the vicinity of Strelcë. At the type locality this taxon is found syntopically with Montenegrina laxa errans Erőss & Szekeres, 2006 (Fig. 20).