tuecka, Acipenser Heckel [J. J.] in Fitzinger & Heckel 1836:293 [Annalen des Wiener Museums der Naturgeschichte v. 1 (no. 12); ref. 2077] Originally as tücka. Name in the synonymy of Acipenser schypa, not available. Also occurred in later literature as name only. •Questionably in the synonymy of Acipenser gueldenstaedtii Brandt & Ratzeburg 1833 -- (Kottelat 1997:30 [ref. 22952]). Nomen Nudum. Current status: Synonym of Acipenser gueldenstaedtii Brandt & Ratzeburg 1833. Acipenseridae. Habitat: freshwater, brackish, marine.