Taxonomic revision of the rock-dwelling door snail genus Montenegrina Boettger, 1877 (Mollusca, Gastropoda, Clausiliidae)
Author
Feher, Zoltan
Author
Szekeres, Miklos
text
ZooKeys
2016
599
1
137
http://dx.doi.org/10.3897/zookeys.599.8168
journal article
http://dx.doi.org/10.3897/zookeys.599.8168
1313-2970-599-1
8BEE967F7C6946928210A440AD8E2018
8BEE967F7C6946928210A440AD8E2018
Taxon classification Animalia Stylommatophora Clausiliidae
Montenegrina rugilabris golikutensis
ssp. n.
Fig. 28B
Diagnosis
.
Medium-size, light to darker purplish-brown subspecies with smooth whorls, not overlapping lamellae superior and spiralis, in front view not visible lamella subcolumellaris, and mostly separate anterior plica superior and lunella complex.
Description.
The medium-size, dark to lighter purplish-brown shell consists of 9 to 10 whorls, which are separated by a whitish suture. The entire surface is smooth, except that of the weakly inflexed, very finely and densely costate neck. The basal and peripheral crests are weak. The light brown, ovoid to somewhat quadrangular, narrowly attached peristome has slightly swollen margin. The lamella superior initiates at the end of the spiralis, without overlap. The lamella inferior is moderately emerged, its end part descends straight. The broadly bent subcolumellaris is not visible in front view. The dorsal to dorsolateral lunella is short and wide, fused to the short subclaustralis but not to the much longer basalis. The sulcalis is strong. The anterior par of the plica superior is long, often connected to the lunella complex. The clausilium plate is partly visible through the aperture.
Dimensions
(in mm). Holotype Hs: 17.6, Ws: 4.7, Ha: 4.3, Wa: 3.5; paratypes Hs: 16.2-20.1 (mean 18.3, S.D. 1.17), Ws: 4.6-5.8 (mean 5.0, S.D. 0.33), Ha: 4.3-5.3, Wa: 3.3-4.2 (NHMW 111215, n = 12).
Differential diagnosis.
Differs from
Montenegrina rugilabris irmengardis
and
Montenegrina rugilabris lambdaformis
Reischuetz
& Sattmann, 1990 by the non-overlapping lamellae superior and spiralis, deeper lunella, and the separate basalis, whereas from all other
Montenegrina rugilabris
subspecies by its purplish-brown shell surface.
Type locality.
Albania,
Tepelene
District,
Kendrevice
Mts, N slope of the Maja e Golikut, 1350 m,
40.2758°N
,
20.0947°E
.
Type material.
Type locality, leg. DA, ZF, JG, 28.vi.2014, holotype (NHMW 111214), paratypes (HNHM 99363/35, NHMW 111215/23+12a+18aj, GR/36, SZ/4); Mali i Golikut, E of
Koder
, 1270 m,
40.2758°N
,
20.0940°E
, leg. ZB, DP, Schmidt, 11.viii.2006, paratypes (HNHM 99479/18, SZ/4); Mali i Golikut, 2.2 km E of
Koder
, 1380 m,
40.2733°N
,
20.0943°E
, leg. ZB, DP, 11.viii.2006, paratype (HNHM 99480).
Etymology.
The new taxon is named after the Mt. Goliku (Mali i Golikut), its type locality.
Distribution.
Kendrevice
Mts in southern Albania. Known only from the type locality and its vicinity (Fig. 29).