Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio gontierii
Drouët, 1881. Unionidae Russie: 15.
+ Unio gontierii Bourguignat, 1856 — Lopes-Lima et al., 2024: suppl. append. 2, p. 11.
= Unio stepanoffi Drouët, 1881 — Kantor et al., 2010: 329.
+ Unio crassus gontieri Bourguignat, 1856 — Haas, 1969: 53.
+ Unio stevenianus Krynicki, 1837 — Zhadin, 1965: 244.
+ Unio crassus gontieri Bourguignat, 1856 — Haas, 1940: 131.
= Unio (s.s.) crassus var. stepanovi [sic] Drouet, 1881 — Zhadin, 1938: 90, sp. 3f.
+ — Simpson, 1914.
= Unio stepanoffi Drouët, 1881 — Westerlund, 1890: 77.
= Unio stepanoffi Drouët — Kobelt, 1886: 36, pl. 51, fig. 278.
= Unio stepanoffi Drouët (sp. n.) — Drouët, 1881: 15.