Spelaeodiscus albanicus edentatus Pall-Gergely & P. L. Reischuetz, 2018

Pall-Gergely, Barna, Deli, Tamas, Eross, Zoltan Peter, Reischuetz, Peter L., Reischuetz, Alexander & Feher, Zoltan, 2018, Revision of the subterranean genus Spelaeodiscus Brusina, 1886 (Gastropoda, Pulmonata, Spelaeodiscidae), ZooKeys 769, pp. 13-48 : 13

Spelaeodiscus albanicus edentatus Pall-Gergely & P. L. Reischuetz ssp. n. Figure 5A-L

Spelaeodiscus sp. ( Spelaeodiscus aff. obodensis ) - Reischütz et al. 2013: 62.

Type material.

Albania, rocks along the road Hani i Hotit to Vermosh, 7.2-7.8 km north of the junction, 370 m a.s.l., 42°22.451'N, 19°27.507'E, leg. A. Reischütz, N. Reischütz & P. L. Reischütz, Apr. 2014, NHMW 112360/1 (holotype, SW: 4.2 mm, SH: 2.2 mm, Fig. 5A-F ), REI/4 paratypes; rocks above Hani i Hotit, leg. A. Reischütz, N. Reischütz & P. L. Reischütz, Apr. 2012, REI/1 paratypes; Montenegro, Podgorica Municipality, Izvor Vitoja S 1 km, near Shkodra Lake, 30 m, limestone rocks, 42°19.176'N, 19°22.158'E (site code: 2015/105), leg. Z.P. Erőss, Z. Fehér, J. Grego, 05 Jul. 2015, HNHM 103197/4 paratypes, JG/4 paratypes, NHMW 112359/4 paratypes; Montenegro, rocks across the road at Vitoja, Skadarsko Jezero, 16 m a.s.l., 42°19.554'N, 19°21.776'E, leg. A. Reischütz, N. Reischütz & P. L. Reischütz, Apr. 2012, NHMW 112361/1 (photographed paratype, Fig. 5G-L ), REI/4 paratypes.

Additional material.

Albania, Malesia district, Xhajë NE 0.5 km, 650 m a.s.l., 42°19.838'N, 19°36.341'E (site code: 2015/103), rocks, leg. Z.P. Erőss, Z. Fehér & J. Grego, 04.07.2015, HNHM 103493/ 5 juvenile shells (not paratypes) ; NHMW 110430/MN/0985/ 5 juvenile shells (not paratypes), JG/ 6 juvenile shells (not paratypes).

Type locality.

Albania, rocks along the road Hani i Hotit to Vermosh, 7.2-7.8 km north of the junction, 370 m a.s.l., 42°22.451'N, 19°27.507'E.

Diagnosis.

Protoconch glossy; aperture without teeth.

Measurements. SW: 3.6-4.2 mm (median = 4.0 mm), SH: 1.9-2.2 mm (median = 2.1 mm), AW: 1.5-1.7 mm (median = 1.6 mm), AH: 1.3-1.6 mm (median = 1.4 mm), (n = 6; largest and smallest specimens of multiple populations measured).

Differential diagnosis.

This new subspecies differs from the nominotypical subspecies in the following traits: aperture relatively larger, and its basal area not straight; apertural barriers (teeth) absent; protoconch smooth, glossy; ribs somewhat less dense (rib density on body whorl: 35-54).

Variation among specimens.

This subspecies shows some variability in terms of shell size and rib density.

Etymology.

This new subspecies is named after its toothless aperture, which distinguishes it from the nominotypical subspecies.

Distribution.

This taxon is found in the northeastern part of the Lake Shkodër Basin (Figure 4 ).

Conservation status.

See under Spelaeodiscus albanicus .

Figures

Figure 4. Distribution of Spelaeodiscus Brusina, 1886 species.

Figure 5. Shells of Spelaeodiscus Brusina, 1886 species. A-F Spelaeodiscus albanicus edentatus ssp. n., holotype (NHMW 112360) G-L Spelaeodiscus albanicus edentatus ssp. n., Montenegro, rocks across the road at Vitoja, Skadarsko Jezero (NHMW 112361) M-R Spelaeodiscus densecostatus sp. n., holotype (NHMW 112364).