Chiasmodon niger Johnson, 1864 .

Black Swallower. To 23.6 cm (9.3 in) SL (Melo 2009). Eastern Pacific, from to west coast of North, Central, and northern South America (Melo 2009); in mid-North Pacific recorded north to 43°N (Mecklenburg et al. 2002); in eastern North Pacific from Washington (Personal communication: University of Washington, Burke Museum of Natural History and Culture Fish Collection, Seattle, Washington, 47°33’N, 125°19’W; UW 045555) to southern Baja California (24°27’N) (Cruz-Acevedo et al. 2018). Mesopelagic and bathypelagic, 183–4,568 m (600–1,498 ft) (min.: Robertson et al. 2017; max.: Melo 2009). We follow Prokofiev (2014) and consider Chiasmodon subniger Garman, 1899 to be a junior synonym. However, we note that Fricke et al. (2020) consider C. subniger to be a valid species.