Cochlostoma (T.) sturanii ( Wagner, 1897 )

Zallot, Enrico, Kamchev, Panche, Schilthuizen, Menno, Fehér, Zoltán, Mattia, Willy De & Gittenberger, Edmund, 2024, Cochlostoma Jan, 1830 revised: an overview of the subgenus Turritus Westerlund, 1883 and its species (Caenogastropoda, Cochlostomatidae), European Journal of Taxonomy 927, pp. 1-163 : 123-125

Cochlostoma (T.) sturanii ( Wagner, 1897)

Figs 105 (purple dots), 108–109

Pomatias gracile var. sturanii Wagner, 1897: 45–46 , pl. VIII fig. 75a–b.

Syntypes

CROATIA • 1 ♂; “ P. gracilis Pf. var. sturanii Wgnr. Orig. Korenica Croatien ”; SMF160600 • 1 ♂; “ P. gracilis Pfr. var. sturanii A.J. Wagner, Jezero bei Korenica Croatien ”; SMF1160601 • 2 ♀♀, 1 ♀; “ Cochlostoma sturanyi AJW. Plješevica Gebirge Zm Priboj . Geta Kroatien ”; NHMWK45395 .

Other specimens

CROATIA • 2- Plitvice ; 44.8641° N, 15.5820° E; 2002; Murányi leg.; HNHM100120 • 3- Gračac ; 44.2431° N, 15.813° E; 1987; Pintér leg.; HNHM100406 • 4- Gračac , Čerovacka pečina; 44.2764° N, 15.8747° E; 2009; Jochum leg.; HNHM97238 • 5- Crnopac Pass ; 44.2501° N, 15.8502° E; 1999; Erőss, Fehér and Kovács leg.; HNHM93345 .

Type locality

CROATIA • 1- “Plješevica-Gola bei Priboj”.

Description

SHELL. Closely spaced riblets on last part of protoconch. Teleoconch with two lines of reddish spots on whorls. Quite closely spaced ribs on teleoconch. Very strong lip with abrubtly inwardly curved columellar lobe covering umbilicus.

MEASUREMENTS. 2 ♀♀ from Plješevica: whorls= 7.1–7.5, H =6.9–7.0 mm, H/W=2.50–2.6, roundness =0.16–0.17, ribs incl.=66–67°, apert. incl.= 13–17°, ribs/mm 1 st wh.=9–10, ribs/mm 4 th wh. =10–12.

Remarks

Fresh material from the type locality was not available. Wagner (1897: 45–46) described this species as a “variety” of gracile , and mentioned, next to the type locality, Korenica as its habitat. We analysed specimens from the vicinity of this locality (Plitvice), having the same shell morphology as the syntypes, with evident spots on the whorls and a thick lip ( Fig. 109A ), but it was not possible to analyse the female genital morphology because of the poor preservation. In Wagner’s collection, there are specimens from Gračac, HR (MIZPASW7041) and “Berg Crnopac”, HR (MIZPASW7042) identified as this taxon. We tentatively report fresh material from these localities, ca 60 km south of Plješevica as such. The female genital organs of the sample from Gračac show a “ patulum -like” morphology.

Figures

Fig. 105. Distribution of samples with undetermined position in the phylogenetic trees: white= Cochlostoma (T.) macei (Bourguignat, 1870); purple =C. (T.) sturanii (Wagner, 1897); orange=C. (T.) kleciaki (Braun, 1887); yellow=C. (T.) arnautorum (Wagner, 1906); red =C. (T.) atlanticum (Bourguignat, 1868); green =C. (T.) euboicum (Westerlund, 1885); blue =C. (T.) martensianum (Möllendorff, 1873); magenta= C. (T.) simrothi (Caziot, 1908); cyan =C. (T.) fontqueri Haas, 1924.

Fig. 109. Cochlostoma (T.) sturanii (Wagner, 1897). A. 2- Plitvice, HR (HNHM-100120). B. Syntype, 1- Plješevica, HR (NHMW-K45395/1). C. 3- Gračac, HR (HNHM-100406). D. 5- Crnopac Pass, HR (NHMW-93345).