Montenegrina hiltrudae densicostulata Nordsieck, 1974

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 : 39

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina hiltrudae densicostulata Nordsieck, 1974 Fig. 19D

Montenegrina hiltrudae densicostulata Nordsieck, 1974: 155, plate 6, fig. 37. - Zilch 1981: 128, plate 14, fig. 36. - Nordsieck 2009: 74.

Montenegrina hiltrudae (partim) - Nordsieck 1972: 33-34.

Diagnosis.

Shell small to medium, tumid, light corneous. Lower whorls striate to densely costate, upper ones with stronger ribs. Neck weakly inflexed. Basal crest strong, peripheral crest not recognizable. Peristome detached, circular to ovoid, with swollen, reflexed margin. Lamellae superior and spiralis mostly overlap. In front view lamella inferior well emerged, medium-bent subcolumellaris usually visible. Lunella dorsal-dorsolateral, weakens toward the basis. Basalis absent or short, separate from the lunella. Subclaustralis very short, sulcalis well developed. Anterior plica superior occasionally connected to the lunella complex.

Dimensions

(in mm). Hs: 15.8-22.4 (holotype 21.9), Ws: 4.3-6.1 (holotype 6.1).

Type locality.

Greece, Western Macedonia, Srianovon, along the Neapolis to Vogatsikon road.

Type material.

Type locality, leg. H. Nordsieck, 23.viii.1971, holotype (SMF 227686), paratypes (SMF 227687, SMNS-N 5475, NMBE 534967/2, NHMW-K-65051/10).

Other material.

Greece, Kastoria District, above a quarry along the Vogatsiko to Driovouno road, 680 m, 40.3782°N, 21.4160°E, leg. ZE, ZF, JG, 28.vi.2013 (HNHM 99584); 1 km W of Germas, dry gorge, 840-880 m, 40.4430°N, 21.4111°E, leg. ZE, ZF, JG, 28.vi.2013 (HNHM 99582, HNHM 99583).

Distribution.

Southern part of the Verno Mountain in Western Macedonia (Greece). Found at some sites around Vogatsiko, southeast of the Kastoria Lake (Fig. 20).

Remarks.

Originally Nordsieck (1972) classified Montenegrina hiltrudae densicostulata with the nominotypical subspecies, but only two years later he described it as a distinct taxon ( Nordsieck 1974).