Brachyistius frenatus Gill, 1862. Kelp Perch or Kelp Surfperch. To 21.6 cm (8.5 in) TL (Miller and Lea 1972). Near Sitka, south-eastern Alaska (Mecklenburg et al. 2002) to Bahía Tortugas, central Baja California, including Isla Guadalupe (Miller and Lea 1972). Depth: intertidal to 76 m (249 ft) (min.: Hubbs and Hubbs 1954; max.: M.L., unpubl. data); primarily at middepths among columns of giant kelp (particularly Macrocystis) (Hubbs and Hubbs 1954). Brachyistius aletes Tarp, 1952 is a synonym (Longo et al. 2018).