Gyraulus eichwaldi (Clessin & Dybowski in Dybowski, 1887)

°1876 Pl.[anorbis] Eichwaldi. - Grimm: 157 (nomen nudum).

*1887 Planorbis Eichwaldi Clessin & Dybowski in Dybowski: 49-52.

1888 Planorbis Eichwaldi Grimm. - Dybowski: 79, pl. 2, fig. 11 a–c, pl. 3, fig. 10 a–c .

?1966b Anisus (Andrusowia) [sic] eichwaldi infundibularis Logvinenko and Starobogatov: 1472, fig. 4.

?1977 Anisus djalali Tadjalli-Pour: 109, pl. 2, fig. 10.

2016 Gyraulus (Gyraulus) eichwaldi (Grimm in W. Dybowski, 1888). - Vinarski and Kantor, 2016: 378.

Status. Accepted Pontocaspian species.

Type locality. Caspian Sea (no details).

Distribution. Middle and southern Caspian Sea (Logvinenko and Starobogatov 1969). This species was mentionedfrom depths between 200 and 900 m in the South Caspian Basin of Azerbaijan (Mirzoev and Alekperov 2017, who reported the species as Anisus eichwaldi).

Taxonomic notes. The species is characterised by a relatively large, asymmetrical shell. Anisus eichwaldi infundibularis is probably a morphotype of G. eichwaldi . We are uncertain about the status of Anisus djalali Tadjalli-Pour, 1977 as the description is very brief and the photographs are not very clear. It may be within the range of the morphological variability of G. eichwaldi .

Conservation status. Not assessed.