Amphistichus koelzi (Hubbs, 1933) .
Calico Surfperch. To 32.5 cm (12.8 in) TL (Kirk Lombard, pers. comm. to M.L.). Cape Flattery, Washington (Eschmeyer and Herald 1983) to Los Ojitos (about 29’N), central Baja California (Ruiz-Campos et al. 2010). Depth: intertidal to 9 m (30 ft) (Miller and Lea 1972).