Montenegrina zilchi 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 : 110-111

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina zilchi Nordsieck, 1974 Fig. 34N

Montenegrina zilchi Nordsieck, 1974: 156, plate 6, fig. 39. - Zilch 1981: 132, plate 15, fig. 43. - Nordsieck 2009: 73.

Diagnosis.

Shell large, brownish-corneous. All whorls smooth. Neck not or very weakly inflexed, densely striate. Basal crest weak, peripheral crest not recognizable. Peristome attached, ovoid, with somewhat swollen margin. Lamellae superior and spiralis overlap. In front view lamella inferior well emerged, broadly-bent subcolumellaris visible. Lunella dorsal, fused to the long basalis. Subclaustralis short, sulcalis strong. Anterior plica supe rior separate from the lunella complex, accompanied by one or two short lower plicae. Forward-bending parietal edge of the clausilium plate occasionally visible in front view.

Dimensions

(in mm). Hs: 19.4-26.1 (holotype 24.9), Ws: 5.1-6.6 (holotype 5.8).

Type locality.

Greece, Thessaly, Pili near Trikala, medieval Turkish bridge.

Type material.

Type locality, leg. Nordsieck, 7-8.ix.1972, holotype (SMF 227690), paratypes (SMF 227691, SMNS-N 5940); same locality, leg. Fauer, 31.vii.1973, paratypes (SMNS-N 6711, ZMH 113582/pl.).

Other material.

Type locality, 39.4603°N, 21.6008°E, leg. ZE, ZF, JG, 22.vi.2013 (HNHM 99598).

Distribution.

Gorge of the Portaikos River at the western edge of the Thessaly Basin. Known only from the type locality (Fig. 36).