Montenegrina hiltrudae dennisi Gittenberger, 2002

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 : 37-39

Taxon classification Animalia Stylommatophora Clausiliidae

Montenegrina hiltrudae dennisi Gittenberger, 2002 Fig. 19C

Montenegrina dennisi dennisi Gittenberger, 2002: 134, figs 7-8. - Nordsieck 2009: 73, plate 2, fig. 10.

Diagnosis.

Shell medium, light corneous. Lower whorls smooth, upper ones moderately wrinkled-costate. Neck weakly inflexed, finely costate. Basal and peripheral crests weak. Peristome attached, ovoid, with somewhat swollen margin. Lamellae superior and spiralis mostly overlap. In front view lamella inferior well emerged, broadly-bent subcolumellaris usually not visible. Lunella dorsal, short and broad. Basalis absent or residual, separate from the lunella. Subclaustralis absent, sulcalis well developed. Anterior plica superior weak, not connected to the lunella complex.

Dimensions

(in mm). Hs: 15.7-21.2 (holotype 18.7), Ws: 4.3-5.2 mm.

Type locality.

Greece, Western Macedonia, 1.5 km SE of Zakas, 2.5 km along the road to Spileo, N slope, 900 m.

Type material.

Type locality, leg. Gittenberger, Uit de Weerd, holotype (RMNH 94939), paratypes (RMNH 94940/50); same locality, leg. Gittenberger, Maassen, 23.v.2001, paratypes (RMNH 82021/30, SMF 331782/3, NMBE 534890/3); Spileo, west side, 3.25 km S of Zakas, SSW slope, 930 m, leg. Gittenberger, Maassen, 24.v.2001, paratypes (RMNH 82027/32, SMF 331783/3, NMBE 534889/3).

Other material.

Greece, 0.5 km N of Spileo, toward Zakas, 930 m, 40.0080°N, 21.2847°E, leg. ZE, ZF, JG, 22.vi.2013 (HNHM 99591); 3 km E of Zakas, 900 m, 40.0422°N, 21.2823°E, leg. ZE, AH, 15.vii.2004 (HNHM 95393); 0.5 km W of Spileo, toward Portitsa Farangi, 940 m, 40.0077°N, 21.2805°E, leg. ZE, ZF, JG, 22.vi.2013 (HNHM 99592).

Distribution.

Western Macedonia (Greece). All known localities are within a range of a few km on the Mt. Orliakas, reaching to the Venetikos River in the the north (Fig. 20).

Remarks.

Originally Montenegrina hiltrudae dennisi was described as a separate species ( Gittenberger 2002). However, its shell features (and also those of the closely related Montenegrina hiltrudae protruda Gittenberger, 2002) fit well in the varability range of Montenegrina hiltrudae subspecies.