* Lycenchelys hippopotamus Schmidt, 1950. Behemoth Eelpout or Hippopotamus Eelpout. To 22.3 cm (8.8 in) TL, but none recorded is fully mature (Anderson 1995). Southern Sea of Okhotsk (Schmidt 1950) to western Bering Sea southwest of Cape Navarin (Fedorov 1976). Benthic; depth: 160–1,800 m (525–5,904 ft) (min.: Orlov and Tokranov 2019; max.: Kawarada et al. 2020).