ayresii, Acipenser (Antaceus) Duméril [A. H. A.] 1867:171, Pls. 12 (figs. 1-1b), 16 (fig. 3) [Nouvelles Archives du Muséum d'Histoire Naturelle, Paris v. 3; ref. 14072] San Francisco, California, U.S.A. Holotype (unique): whereabouts unknown. Also appeared in Duméril 1870:226, Pl. 18 (figs. 2, 2a-b) [ref. 1147]. •Synonym of Acipenser transmontanus Richardson 1836. •Synonym of Sinosturio transmontanus (Richardson 1836). Current status: Synonym of Sinosturio transmontanus (Richardson 1836). Acipenseridae. Habitat: freshwater.