Montenegrina perstriata occidentalis Nordsieck, 1977

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 : 66-67

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina perstriata occidentalis Nordsieck, 1977 Fig. 27G

Montenegrina dofleini occidentalis Nordsieck, 1977: 85, plate 4, fig. 15. - Zilch 1981: 127, plate 15, fig. 38. - Nordsieck 2009: 74.

Diagnosis.

Shell small to medium, elongate, light corneous. Lower whorls flattened, nearly of the same width. Surface costate, ribs sharper and wider spaced over the upper whorls and the neck. Peristome rounded to angular, with somewhat swollen margin. Lamellae superior and spiralis long overlap. In front view lamella subcolumellaris not visible. Lunella dorsolateral to lateral, separate from the weak basalis. Subclaustralis residual, sulcalis strong. Anterior plica superior mostly absent, if present separate from the lunella complex. Clausilium plate occasionally visible through the aperture.

Dimensions

(in mm). Hs: 12.8-17.8 (holotype 16.7), Ws: 3.6-4.4 (holotype 4.1).

Type locality.

Macedonia, Kališta near Struga.

Type material.

Type locality, leg. Nordsieck, 5.viii.1974, holotype (SMF 237804), paratypes (SMF 237805, SMF 320060/15, SMNS-N 6937, NMBE 534974/2); type locality, leg. Nordsieck, 26.viii.1976, paratypes (ZMH 91617/6).

Other material.

Macedonia, Kališta, orthodox cemetery, 710 m, 41.1493°N, 20.6493°E, leg. ZE, ZF, AH, 7.iv.2004 (HNHM 94441); Albania, Pogradec District, Lin, 710 m, 41.0693°N, 20.6468°E, leg. ZE, ZF, JG, 30.vi.2013 (HNHM 99615); same locality, leg. ZE, ZF, JK, DM, 23.x.2003 (HNHM 94903).

Distribution.

Western shore of the Ohrid Lake. Known only from two localities (Fig. 25). A third record, mentioned in the original description ( Radožda near Struga), was later reconsidered as corresponding to Montenegrina perstriata plenostoma Fehér & Szekeres, 2006 ( Nordsieck 1977, 2009).