** Acanthogobius flavimanus (Temminck & Schlegel, 1845). Yellowfin Goby. To 25 cm (9.8 in) TL in eastern Pacific; 30 cm (12 in) TL in Japan (Eschmeyer and Herald 1983). Native to Russian coast of Sea of Japan (Vasil’eva 2003), Japan, China, and Korea; Tomales Bay (Moyle 2002); Estero Americano, Sonoma County, northern California (Personal communication: California Academy of Sciences Fish Collection, San Francisco, California), San Francisco Bay, and other central and southern California bays and estuaries (Eschmeyer and Herald 1983) to Ensenada, northern Baja California (Watson in Moser 1996), and perhaps to Isla de Cedros, but without documentation (Ramírez-Valdez et al. 2015). Benthic; bays and estuaries and ascends rivers (Eschmeyer and Herald 1983); intertidal to 14 m (45 ft) (min.: Allen 1999; max.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California).