Cochlostoma (T.) gracile (Pfeiffer, 1849)

Figs 15G, 21 (red dots), 22

Cyclostoma gracile Pfeiffer, 1846 –1850 (1846?): 191, pl. 26 figs 28–30.

Types

Not seen.

Other specimens

CROATIA • 1- Omiš 2 (topotypical); 43.4425° N, 16.7317° E; 2011; De Mattia leg.; EZ1093 • 1- Omiš 1 (topotypical); 43.4428° N, 16.7319° E; 1998; De Mattia leg.; WdM6667 • 1- Omiš 3 (topotypical); 43.4428° N, 16.7319° E; 1985; Pintér leg.; HNHM43203 .

Type locality

CROATIA • Split-Dalmatia, Omiš; 43.4425° N, 16.7317° E.

Description

SHELL. Closely spaced riblets on last part of protoconch. Teleoconch spotless, with strong and well-spaced ribs. Lip is rather weak. Columellar lobe bent inwardly to cover umbilicus.

MEASUREMENTS. 2 ♀♀: whorls =8.1–8.6, H = 6.7–7.2 mm, H/W=2.66–2.89, roundness=0.16–0.17, ribs incl.= 57–57°, apert. incl.= 21–23°, ribs/mm 1 st wh.= 5–8, ribs/mm 4 th wh.=5–7.

FEMALE GENITAL ORGANS. As in C. (T.) stussineri .

Remarks

This species is considered widespread with several subspecies all along the Balkan Peninsula, reaching south Greece with C. (T.) gracile subaiorum Schütt, 1977 . Our findings, however, seem to indicate that it has in fact a limited range. Its p-distances from taxa currently considered as subspecies like stussineri and reitteri are 2.9 and 3.6%, respectively.