original description
Eichwald, E. (1841). <i>Fauna Caspio-Caucasia nonnullis observationibus novis illustravit</i>. iv + 233 pp., pls 1-40. Petropoli (Litteris Typographiae Dairii Gall. Politic. Petropol.). [also published in 1842 in <i>Nouveaux Mémoires de la Société Impériale des Naturalistes de Moscou</i>, 7: v + 290 pp. + [2] (= corrigenda)]. , available online at https://www.biodiversitylibrary.org/page/52792347
page(s): 263 [details]
additional source
Bogutskaya, N.G.; Kijashko, P.V.; Naseka, A.M.; Orlova, M.I. (2013). Opredelitel' ryb i bespozvonochnykh Kaspiyskogo morya. T. 1. Ryby i mollyuski [ldentification keys for fish and invertebrates. Volume 1. Fish and molluscs]. КМК Scientific Press Ltd., St. Petersburg/Moscow. 543 pp., 56 pl. [In Russian].
page(s): 41 [details] Available for editors [request]
From editor or global species database
Status Perhaps a species of Sphaerium, but the classification is uncertain (see Bogutskaya et al. 2013: 41) [details]