aculeatus, Acipenser Lovetsky [A.] (ex Fischer) 1834:262, Pl. 19 (fig. 2) [Nouveaux mémoires de la Société impériale des naturalistes de Moscou v. 3; ref. 18085] Dnjepr River in Jekaterinoslaw/Yekaterinoslav Province, Russia. [Original as "Fluvius Borysthenes. Sed uti videtur, locis restrictis Gubern. Catherinoslawl."] •Synonym of Acipenser gueldenstaedtii Brandt & Ratzeburg 1833 -- (Kottelat 1997:30 [ref. 22952], Jouladeh-Roudbar et al. 2020:14 [ref. 37983]). Current status: Synonym of Acipenser gueldenstaedtii Brandt & Ratzeburg 1833. Acipenseridae. Habitat: freshwater, brackish, marine.