mehdem, Squalius Warpachowski [N. A.] 1897:255, Pl. 12 (fig. 1) [Ezhegodnik, Zoologicheskago Muzeya Imperatorskoi Akademii Nauk v. 2; ref. 4515] Ob River at Atlym, Siberia, Russia. Holotype (unique): ZIN 11295. •Synonym of Leuciscus leuciscus (Linnaeus 1758) subspecies baicalensis (Dybowski 1874) -- (Berg 1949:546 [ref. 20661]). •Synonym of Leuciscus leuciscus (Linnaeus 1758) -- (Kottelat 1997:68 [ref. 22952], Bogutskaya 1998:64 [ref. 23589]). •Synonym of Leuciscus baicalensis (Dybowski 1874) -- (Kottelat 2006:37 [ref. 28831]). Current status: Synonym of Leuciscus leuciscus (Linnaeus 1758). Leuciscidae: Leuciscinae. Habitat: freshwater, brackish.