original description (unavailable nomenclaturally)
Bogachev, V.V. (1961). Materialy k istorii presnovodnoi fauny Evrazii. <em>Izdatel'stvo Akademii Nauk Ukrainskoi SSR, Kiev.</em> 404 p.
page(s): 223, pl. 21, figs 4-6 [details] Available for editors [request]
From editor or global species database
Validity Not available as species-group name, introduced as variety after 1960 (ICZN Art. 15.2) [details]