Hippocampus ingens Girard, 1858 .

Pacific Seahorse. To 30.5 cm (12 in) TL (Amezcua Linares 1996). Beached specimen on Pismo Beach, California (35°08’N, 120°38’W) (M.L., unpubl. data); Point Conception (M.L., unpubl. data) to Chile (Pequeño 1989), including Isla Guadalupe (Becerril-García et al. 2018), central Baja California, Gulf of California, and Islas Galápagos (Miller and Lea 1972); old record from San Francisco Bay (Eschmeyer and Herald 1983). Marine and brackish waters (Romero-Berny et al. 2021); depth: surface (Fritzsche 1980), intertidal to 107 m (351 ft) (min.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California; max.: Amezcua Linares 1996).