Gyraulus sulcatus

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 : 100

Gyraulus sulcatus (Logvinenko & Starobogatov, 1966, non Hilgendorf, 1867)

*1966b Anisus (Andrusowia) [sic] sulcatus Logvinenko & Starobogatov: 1474, fig. 7.

2016 Gyraulus (Gyraulus) sulcatus (Logvinenko & Starobogatov, 1966). - Vinarski and Kantor, 2016: 382.

Status. Pontocaspian species, identity uncertain, name invalid.

Type locality. Caspian Sea, 42°45'N, 48°29'E, 79 m.

Distribution. Middle Caspian Sea ( Logvinenko and Starobogatov 1969).

Taxonomic notes. The species in its present combination as Gyraulus sulcatus (following Vinarski and Kantor 2016) is invalid as it is a secondary homonym of the Miocene Gyraulus sulcatus (Hilgendorf, 1867). We refrain here from introducing a replacement name as the species’ status is uncertain. It resembles G. eichwaldi and G. kolesnikovi in outline shape and differs only in the more pronounced angle between whorl flank and apical plane and the shallow furrow on the apical side. An in-depth revision is required to clarify if Gyraulus sulcatus is a distinct species or a mere morphotype of G. eichwaldi (Clessin & Dybowski in Dybowski, 1887).

Conservation status. Not assessed.