Sternoptyx obscura Garman, 1899 .

Dusky Hatchetfish. To 5.5 cm (2.2 in) SL (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). Circumglobal (Fricke et al. 2020); western Pacific Ocean north to Japan (Fujii in Masuda et al. 1984); at least Monterey Bay, central California (Burton and Lea 2019) to Peru – Chile border (Baird 1971). Depth: surface to 1,393 m (4,569 ft) (min.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California; max.: Cruz-Acevedo et al. 2018). A record of 4,268 m (13,999 ft) (Personal communication: Los Angeles County Museum of Natural History Fish Collection, Los Angeles, California) was based on the maximum depth fished by a midwater trawl and may represent a catch shallower than the maximum depth.