Turanena demirsoyi, Gümüş & Neubert, 2012

Guemues, Burcin Askim & Neubert, Eike, 2012, New taxa of terrestrial molluscs from Turkey (Gastropoda, Pristilomatidae, Enidae, Hygromiidae, Helicidae), ZooKeys 171, pp. 17-37 : 19

Turanena demirsoyi sp. n. Fig. 9

Type specimens.

Holotype NMBE 32704; paratypes NMBE 32705/3; Vil. Erzincan, Kemaliye, Dilli Deresi, 39.315°N, 38.44°E, 870 m alt.,10.7.2005, leg. B. A. Gümüş. - Additional paratypes: SMF 312403/1, Erzincan, Kemaliye, 2.8.1987, leg. N. Kazancı, ex Slg. Neubert; Kemaliye, Yeşilyamaç ( Geşo) Pass, 39.271°N, 38.567°E, 1680 m alt., 07.05.2007, leg. B. A. Gümüş, NMBE 32706/2; Kemaliye, Subatan, 39.188°N, 38.406°E, 1885 m alt., 06.05.2007, leg. B. A. Gümüş, NMBE 32707/1, NMBE 32708/4 (preserved); Vil. Erzincan, Kemaliye, Muşaga village (= Kocaçimen), 39.296°N, 38.54°E, 1375 m alt., 13.07.2005, leg. B. A. Gümüş, NMBE 32715/2.

Diagnosis.

A large species of Turanena with a brown shell; surface of last two whorls with whitish patchy colour pattern; teleoconch sculpture of more or less distinctive riblets.

Description.

Protoconch of almost 2 whorls, smooth, dome-shaped; shell colour pale brown, with a whitish patchy colour pattern on the last two whorls; shell of conical shape with an acutely ovate aperture; whorls of the teleoconch slightly rounded, increasing regularly, the whitish suture of medium depth; last whorl broadened, occupying nearly half of the height of the shell; surface of the teleoconch sculptured by more or less distinctive riblets; aperture rounded at the base with a faint white lip, light brown to dirty whitish deeper in the aperture; columellar rim of the aperture slightly reflected, a thin parietal callus connecting the apertural rims; periomphalum wide, umbilicus open, elongate, of medium width.

Measurements.

Holotype: H = 12.15; D = 6.22; PH = 4.65; PD = 3.25; W = 7.

Etymology.

This species is dedicated to Prof. Dr. Ali Demirsoy from the Hacettepe University in Ankara to acknowledge his outstanding contributions to Turkish zoology and support for young scientists.

Remarks and differential diagnosis.

This species differs from most other Turanena species by its relatively large size; Turanena tuccari (Gittenberger, 1986) differs by its reinforced and reflected lip, which is always sharp and simple in the new species. Turanena andronakii (Lindholm, 1913) from the Çoruh valley and its tributaries has a more elongate slender and always completely brown shell.

Distribution.

This species is only known from the surroundings of Kemaliye, its area of occupancy (AOO) is around 70km2.

Figures

Figures 4 - 12. Enidae. 4 - 10 Meijeriella spp. 4 Meijeriella canaliculata, Vil. Balikesir, Edremit, Kaz Dagi, Camp Area, 39.67 ° N, 26.95 ° E, H = 14.65 mm. 5 - 8 Meijeriella frivaldskyi. 5 syntype Bulimus frivaldskyi, SMF 63750, H = 14.8 mm 6 syntype Bulimus raynevalianus, MHNG 12106, H = 15.8 mm 7 Meijeriella frivaldskyi, SMF 312495, Ruins of Truva, leg. H. P. M. G. Menkhorst, H = 11.45 mm 8 Meijeriella frivaldskyi, NMBE 28357, Ruins of Truva, leg. B. A. Guemues, 10.06.2008, H = 10.6 mm. 9 - 11 Turanena spp. 9. Turanena demirsoyi sp. n., holotype NMBE 32704, Erzincan, Kemaliye, Dilli Deresi, 870 m alt., leg. B. A. Guemues, H = 12.15 mm 10 Turanenea cochlicopoides, Paratype SMF 309776, Vil. Gaziantep, along the road Gaziantep → Bahce, ca. 12 km NW Gaziantep, 1000 m alt., leg. Menkhorst, 15.07.1986, H = 5.6 mm 11 Turanena cochlicopoides; NMBE 32713, between Arslanoba and Dolunay villages (the rocks around the Cahit Bilgin Park), 39.249 ° N, 38.599 ° E, 1560 m alt., leg. B. A. Guemues, 07.09.2007 12 Buliminus alepensis alepensis NMBE 32709, Cit Koeyue, 39.1119 ° N, 38.6043 ° E, 976 m alt. 05.05.2007, leg. B. A. Guemues. - All figures scaled x 5.