borysthenicum, Chondrostoma nasus Berg [L. S.] 1914:373, Figs. 32-33 [ ref. 274] Dnieper River near Neyasit, Ukraine. Syntypes: ZIN 11985 (2). Original not seen. Appeared first as Chondrostoma nasus var. borysthenica in Dybowski as name only and not available (see Kottelat 1997:55 [ref. 22952]). •Synonym of Chondrostoma nasus (Linnaeus 1758), but a valid subspecies as described -- (Lelek 1987:178 [ref. 22962]). •Synonym of Chondrostoma nasus (Linnaeus 1758) -- (Berg 1949:621 [ref. 20661], Elvira 1987:116 [ref. 6743], Bogutskaya 1998:60 [ref. 23589], Parin et al. 2014:71 [ref. 33547]). •Questionably a synonym of Chondrostoma nasus (Linnaeus 1758) -- (Kottelat 1997:55 [ref. 22952]). Current status: Synonym of Chondrostoma nasus (Linnaeus 1758). Leuciscidae: Leuciscinae. Habitat: freshwater.