Hexagrammos lagocephalus (Pallas, 1810) .

Rock Greenling. To 61 cm (24 in) TL (Miller and Lea 1972). Yellow and Japan Seas, and Sea of Okhotsk to Commander–Aleutian Chain (Mecklenburg et al. 2002), to southern California (34°15’N) (NWFSC-FRAM). Benthic; marine and brackish waters (Dyldin and Orlov 2017); depth: intertidal to 80 m (262 ft) in eastern Pacific (min.: Miller and Lea 1972; max.: Mecklenburg et al. 2002) to 596 m (1,955 ft) in western Pacific (Orlov 1998). Following Mecklenburg et al. (2002), Mecklenburg and Eschmeyer (2003), and some earlier authors, treatment here includes Hexagrammos superciliosus (Pallas, 1810), which is classified by some authors as a distinct species. Molecular evidence presented by Crow et al. (2004) supports the existence of a single, widely distributed species.