Turricaspia pseudodimidiata

Wesselingh, Frank, Poorten, Jan Johan ter, Kijashko, Pavel, Albrecht, Christian, Anistratenko, Olga Yu, Frolov, Pavel, Gándara, Alberto Martinez, Gittenberger, Arjan, Gogaladze, Aleksandre, Mikhail Karpinsky, Popa, Luis, Sands, Arthur F, Vandendorpe, Justine & Wilke, Thomas, 2019, Mollusc species from the Pontocaspian region - an expert opinion list, ZooKeys 827, pp. 31-124 : 89

? Turricaspia pseudodimidiata (Dybowski & Grochmalicki, 1915)

*1915 Micromelania (Turricaspia) pseudodimidiata Dybowski & Grochmalicki: 126-128, pl. 3, fig. 32a, b.

?1969 Pyrgula (Eurycaspia) pseudodimidiata (Dyb. et Gr.). - Logvinenko and Starobogatov: 357, fig. 358(15).

?2006 Pyrgula pseudodimidiata (B. Dybowski & Grochmalicki, 1915). - Kantor and Sysoev: 102, pl. 47, fig. G.

2016 Pyrgula pseudodimidiata (B. Dybowski & Grochmalicki, 1915). - Vinarski and Kantor: 241.

Status. Pontocaspian species, identity uncertain.

Type locality. Caspian Sea (no details).

Distribution. Southern Caspian Sea ( Logvinenko and Starobogatov 1969). This species was mentioned from depths between 200 and 300 m in the South Caspian Basin of Azerbaijan ( Mirzoev and Alekperov 2017).

Taxonomic notes. The identity of this species is uncertain. Dybowski and Grochmalicki (1915) describe and illustrate a shell with eight convex whorls bearing a weak, hardly protruding, irregular shaped keel near the lower suture. According to these authors, the keel varies considerably between a thin thread, a blunt bulge, or a weak thickening at the suture. In contrast, the drawings provided by Logvinenko and Starobogatov (1969) and reproduced by Kantor and Sysoev (2006) suggest a shell with straight-sided whorls and a distinct keel. Inspection of the type material is required to clarify the status of this species.

Conservation status. Not assessed.