heckelii, Acipenser Fitzinger [L. J. F. J.] in Fitzinger & Heckel 1836:303, Pls. 26 (fig. 4), 29 (figs. 11-12) [Annalen des Wiener Museums der Naturgeschichte v. 1 (no. 12); ref. 2077] Adriatic Sea (Mediterranean Sea); rivers Po, Etsch [Adige] and Brenta, Italy. Syntypes: NMW 76784 (1), 92877 (1, dry). Name mentioned first in Brandt & Ratzeburg 1833:29 [ref. 619], not available. Name declared a nomen oblitum in Kottelat & Freyhof 2009:76 [ref. 30320] •Synonym of Acipenser naccarii Bonaparte 1836 -- (Kottelat 1997:30 [ref. 22952], Kottelat & Freyhof 2009:77 [ref. 30320]). Nomen Oblitum. Current status: Synonym of Acipenser naccarii Bonaparte 1836. Acipenseridae. Habitat: freshwater, brackish, marine.