obtusirostra, Acipenser ruthenus var. Brusina [S.] 1902:66 [Rad Jugoslavenske Akademije znanosti i umjetnosti. Zagrebu. No. 149; ref. 17292] Original not seen. Treated by Kottelat 1997:32 [ref. 22952] as infrasubspecific and unavailable; from Una River, Croatia. •In the synonymy of Acipenser ruthenus Linnaeus 1758 -- (Kottelat 1997:32 [ref. 22952]). •In the synonymy of Huso ruthenus (Linnaeus 1758). Infrasubspecific. Current status: Synonym of Huso ruthenus (Linnaeus 1758). Acipenseridae.