longirostris, Acipenser gueldenstaedtii var. Antipa [G.] 1909:262 [Publicatiuniule fondului Vasilie Adamachi, Academia Româna [Fauna ichtiologica a romaniei, de dr. Gr. Antipa]. v. 3 (no. 16); ref. 15922] Danube River; Black Sea. Original not seen. Treated by Kottelat as infrasubspecific. •In the synonymy of Acipenser gueldenstaedtii Brandt & Ratzeburg 1833 -- (Kottelat 1997:30 [ref. 22952]). Infrasubspecific. Current status: Synonym of Acipenser gueldenstaedtii Brandt & Ratzeburg 1833. Acipenseridae. Habitat: freshwater, brackish, marine.