Sigmops gracilis (Günther, 1878) .

Slender Fangjaw. To 14.6 cm (6 in) SL (Sinclair and Stabeno 2002).; Central and northern Japan (Aizawa in Nakabo 2002); eastern Bering Sea (57°45’N, 173°56’W) (Maslenikov et al. 2013) and eastern North Pacific Ocean as far south as northern California (40°54’N, 124°29’W) (Personal communication: University of Washington, Burke Museum of Natural History and Culture Fish Collection, Seattle, Washington); confirmed by Katherine Maslenikov). Primarily mesopelagic; depth: near surface to 4,389 m (14,399 ft) (Mecklenburg et al. 2002).