Glyptocephalus stelleri (Schmidt, 1904) .

Far-Eastern Long Flounder, Korean Flounder, or Small-mouth Plaice. To 53 cm (20.9 in) SL (Kim et al. 1999) or 60 cm (24 in) TL (Kramer et al. 1995). Seas of Japan and Okhotsks to Kuril Islands and southern Kamchatka; one record from Bering Sea in vicinity of Pribilof Islands (Lindberg and Fedorov 1993). Benthic; marine and brackish waters (Dyldin and Orlov 2017); depth: about 5–1,600 m (16–5,250 ft) (Lindberg and Fedorov 1993), with greatest densities in winter below 700 m (2,300 ft) (Kim et al. 1999).