Melamphaes longivelis Parr, 1933 .

Longfin Bigscale. To 12.7 cm (5 in) SL (Moore in Carpenter and De Angelis 2016). Atlantic and Pacific Oceans; western Pacific Ocean north to Japan (Aizawa in Nakabo 2002); southern California (Berry and Perkins 1966) to Chile (Pequeño 1989). Depth: adults at 500–1,500 m (1,640 –4,920 ft) (min.: Ebeling 1962; max.: Fujii in Masuda et al. 1984); young fish as shallow as 150 m (492 ft) (Ebeling 1962).