Platyla wilhelmi (A. J. Wagner, 1910 )

Lika, Romilda, Deli, Tamás, Paparisto, Anila, Erőss, Zoltán P. & Fehér, Zoltán, 2021, Contribution to the taxonomy and distribution of Aciculidae (Mollusca: Gastropoda: Caenogastropoda) in Albania and the surroundings, Zootaxa 5004 (1), pp. 131-150 : 144-145

Platyla wilhelmi (A. J. Wagner, 1910)

Figs 5A–B

* Acme wilhelmi A. J. Wagner 1910: 187 , pl. 16 figs 19–20.

Acicula (Platyla) wilhelmi (A. J. Wagner, 1910) —Pintér, L. & Szigethy, A. 1973: 98, figs 3–4.

Acicula (Platyla) wilhelmi ( Wagner, 1910) —Gittenberger, E. & Ripken, T.E.J. 1975: 11, fig. 3

Acicula (Platyla) wilhelmi (A. J. Wagner, 1910) —Zilch, A. 1976: 125, pl. 11 fig. 6.

Platyla wilhelmi ( Wagner, 1910) —Boeters, H.D., Gittengerger, E. & Subai, P. 1989: 172, figs 110, 158, 169.

Platyla wilhelmi (A. J. Wagner, 1910) —Dhora, D. & Welter-Schultes, F.W. 1996: 107, 176, fig. 43.

Platyla wilhelmi (A. J. Wagner, 1910) —Welter-Schultes, F.W. 2012: 83, fig. (unnumbered).

Diagnosis. Shell slender fusiform (H: 3.1–4 mm), brownish to yellowish, milk-whitish at the neck, with 5¾ to 6 barely convex, almost flat whorls. The body whorl accounts for less than half of the total shell height. Whorls have a weak edge below the suture. Aperture in frontal view narrow drop-shaped, with a deep embayment at the palatal insertion (also present in juvenile shells). Parietal callus well developed, forms a hump at the sinulus. In lateral view, neck bulge flattened but visible, peristome almost vertical, but at the sinulus leaning sharply backwards.

Type material studied. Lectotype: Montenegro: Kameno bei Castelnuovo [Herceg Novi]; ex. A. J. Wagner; IZPAN 5478 . Paralectotypes: 3 shells; same collection data as for lectotype; NHMW 47813 /1, SMF 32565/2 (designated by Boeters et al. 1989) .

Additional material: Albania, ’ Nordalbanien, am r[echten]. Kiri-Ufer, 5h (sic!) nö. von Skutari [NE of Shkodër], Genist an der Quelle Rutoči [Rrutaç]; Dabović leg.; NHMW-75000 / E/21507, NHMW-79000 /K/53205. Albania, Shkodër district, ca. 18 km upstream from dam at Koman, a left side-valley of Liqeni i Komanit , fluvial debris; 42.2269° N, 19.905° E; 170 m alt.; 15 Apr 2006; Z. Erőss, Z. Fehér, A. Hunyadi and D. Murányi leg.; HNHM 104653 . Albania, Pukë district, Mertur, 24 km upstream from Koman, fluvial debris at left bank of Koman Lake ; 42.2482° N, 19.907° E; 190 m alt.; 18 Jun 2012; Z. Fehér, T. Kovács and D. Murányi leg.; HNHM 104655 . Albania, Shkodër district, Gadoc (on the Velipojë–Baks-Rjollë road), near Kruni i Gadocit ; 41.8980° N, 19.4425° E; 5 m alt.; 27 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104658 . Albania, Shkodër district, Baks-Rjollë W 2 km, on the road to Velipojë ; 41.8763° N, 19.4592° E; 10 m alt.; 28 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104659 . Albania, Shkodër district, Qafë Shtiqë (Renc Mt.), on the Shkodër – Velipojë road; 41.9161° N, 19.4268° E; 50 m alt.; 28 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104660 . Albania, Shkodër district, Malkolaj, at the Torovicë junction on the Shkodër – Velipojë road; 41.9270° N, 19.4387° E; 1 m alt.; 28 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104661 . Albania, Malësia district, Tamarë , right side valley, N of the village; 42.4745° N, 19.5693° E; 360 m alt.; 27 Jun 2016; Z. Erőss, Z. Fehér, M. Szekeres and J. Grego leg.; HNHM 104664 . Albania, Shkodër district, 1 km NE of Ura e Shtrenjtë ; 42.153° N, 19.6667° E; 160 m alt.; 28 Jun 2016; Z. Erőss, Z. Fehér, M. Szekeres and J. Grego leg.; HNHM 104665 . Montenegro, Rumija Mts., Arbnež S 4 km, on the Ostros–Ulcinj road, 2 km S of Štegvaš Pass; 42.0582° N, 19.3535° E; 350 m alt.; 16 Jul 2017; Z. Erőss and Z. Fehér leg.; HNHM 104667 . Montenegro, Rumija Mts. Zoganje N 5 km, on the Ulcinj–Shkodër road; 41.9794° N, 19.2589° E; 80 m alt.; 14 Jul 2018; Z. Fehér and T. Fehér leg.; HNHM 104668 . same locality as for preceding; 8 Jul 1985; É. Kiss and L. Pintér leg.; HNHM 30926 . Montenegro, Donji Murići, above the village, at the junction of a minor road to Besa ; 42.1539° N, 19.2154° E; 200 m alt.; 16 Jul 2017; Z. Erőss and Z. Fehér leg.; HNHM 104666 . Montenegro, Rumija Mts, 9 km S of Virpazar (on the road to Bar, between Boljevići and Tuđemili ), old tunnel; 42.1912° N, 19.1082° E; 440 m alt.; 14 Oct 2008; L. Dányi, Z. Fehér, J. Kontschán and D. Murányi leg.; HNHM 104654 . Montenegro, Novoselje S, on the Petrovac – Virpazar road; 42.2172° N, 18.9556° E; 470 m alt.; 21 Oct 2017; T. Deli, Z. Erőss, A. Hunyadi and B. Páll-Gergely leg.; HU, ER, DT . Montenegro, Buljarica ; 42.1998° N, 18.9607° E; 50 m alt.; 25 Sep 2005; P. Subai leg.; NMBE 531250 : Virpazar N 3.5 km, to Rijeka Crnojevića at the Observation Point ; 42.2547° N, 19.0896° E; 150 m alt.; 25 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104657 . Montenegro, Rijeka Crnojevica, Obod Cave ; 42.352° N, 19.0053° E; 110 m alt.; 23 Sep 2006; P. Subai and M. Szekeres leg.; NMBE 531254 . Montenegro, Kotor, Škurda Gorge ; 42.4269° N, 18.7756° E; 75 m alt.; 29 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104662 . Montenegro, Kotor, Sv. Jovan Fortress, W side, fortress wall; 42.4237° N, 18.7742° E; 175 m alt.; 19 Jul 2018; A. Fehér and Z. Fehér leg.; HNHM 104669 . Montenegro, Lovćen Mts, gorge ca. 8 km from Kotor on the road to Njeguši ; 42.4022° N, 18.7751° E; 400 m alt.; 29 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104663 . Montenegro, Morača valley , 15.5 km S of Morača Manastir; 42.6435° N, 19.3778° E; 180 m alt.; 24 May 2015; T. Deli, Z. Erőss and Z. Fehér leg.; HNHM 104656 . Montenegro, Kotor Bay, Banja Monastery between Risan und Perast ; 42.5028° N, 18.6948° E; 50 m alt.; 20 Sep 2005; P. Subai leg.; NMBE 531269 . Montenegro, Herceg Novi , S of the Sutorina-Njivice-Igalo road junction; 42.457° N, 18.4919° E; 10 m alt.; 17 Sep 2006; P. Subai leg.; NMBE 531312 . Montenegro, Herceg Novi, Mokrine ; 42.5143° N, 18.4873° E; 520 m alt.; 19 Sep 2005; Subai leg.; NMBE 531264 .

Distribution. This species is distributed along the Adriatic shore from southern Dalmatia (Omiš) to northwestern Albania (Mt. Renc). Very frequent in the Kotor Bay area and in the Rumija Mts ( Boeters et al. 1989). Inland it spreads up into the Morača Valley in Montenegro and into the valleys of Cem, Kir and Drin Rivers in Albania ( Fig. 1D ).

Conservation status. Due to the fact that the number of the known subpopulations is at least 15–20 and there are no identified threats, it was assessed globally as Least Concern ( Fehér 2011c). In Albania, and also in Montenegro, there are more than five known subpopulations and the areas of occupancy (AOO) are larger than 20 km 2 in both countries. Hence, this species qualifies as Least Concern at the national level in Albania and also in Montenegro.

Genus Renea Nevill, 1880

Type species: Renea bourguignatiana Nevill, 1880 O. D.

Figures

FIGURE 1. Distribution of Platyla and Renea species in and around Albania. A. Yellow: P. albanica; yellow star: type locality of P. albanica; red: P. feheri; red triangle pointing up: type locality of P. feheri. B. Black: P. banatica; red: P. pinteri; red triangle pointing up: type locality of P. pinteri; magenta: P. procax; magenta star pointing up: type locality of P. corpulenta; magenta star pointing down: type locality of P. procax. C. White: P. gracilis; white star: type locality of Acicula graeca; magenta: R. kobelti; magenta star pointing up: type locality of R. kobelti; magenta star pointing down: type locality of R. kobelti albanica. D. Red: P. similis; red star pointing up: type locality of Hyalacme beieri; red star pointing down: type locality of Platyla ceraunorum; purple: P. wilhelmi; purple star: type locality of P. wilhelmi.

FIGURE 5. Shells of Platyla species. A–B. Platyla wilhelmi (A. J. Wagner, 1910), Qafë Shtiqë (HNHM 104660). C–F. Platyla feheri Subai, 2009. C–D. Drisht (HNHM 104648). E–F. Donji Murići S 2 km (HNHM 104650). Scale bar = 1 mm.