Notacanthus chemnitzii Bloch, 1788 .

Snubnosed Spiny Eel. To 135 cm (54 in) TL (Mecklenburg et al. 2018). Probably circumglobal; Greenland (Okamura and Takahashi in Okamura et al. 1995); western Pacific Ocean off Japan (Yabe in Amaoka et al. 1983); Sea of Okhotsk (Orlov 1998); northern Bering Sea (59°22’N, 178°28’W) (Maslenikov et al. 2013) to Chile (Pequeño 1989). Benthopelagic; depth: 126–3,285 m (413–10,775 ft) (min.: Orlov and Tokranov 2019; max.: Yabe in Amaoka et al. 1983); usually taken at the greater depths (Mecklenburg et al. 2002). Either a single species with some intraspecific variation (Mecklenburg et al. 2018) or a species complex (Robertson et al. 2017).