Type localities of: Acipenser kamensis, Kama River; Acipenser ruthenus var. grisescens and Acipenser ruthenus var. leucotica Nishni-Novgorod (no types known); probably by Acipenser kankreni; Acipenser lovetzkyi, no locality; Sterledus ruthenus var. sibiricus, middle and lower Angara River, Siberia; Acipenser ruthenus rutzskyi, Upper Ob River, Siberia (Ref. 124648).

Distributed in the basins of the Black, Caspian, White, Barents and Kara seas and the Sea of Azov (Ref. 26334). This has been translocated to areas within the country for aquaculture and stocking in open waters where it has become locally established (Ref. 45022). Introduced in Pechora drainage in 1928-1950 and in Lake Ladoga basin (Ref. 59043). Also Ref. 683, 55804, 86838. EurRus