Bathysphyraenops simplex Parr, 1933 .

To 10 cm (3.9 in) TL (Heemstra in Carpenter and De Angelis 2016). Cosmopolitan; western Pacific Ocean north to Japan (Hatooka in Nakabo 2002); off central California (35°56’N, 121°58’W) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California) to Chile (30°46’S, 81°31.5’W) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). Depth: as shallow as 78 m (256 ft) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California) to at least 500 m (1,640 ft) (Mundy 2005). While the Scripps Institution of Oceanography database has many catches from deeper than 300 m, many down to 1,000 m (3,280 ft) or less, all of these were taken with nonclosing midwater trawls and catches may have been made in water shallower than the deepest part of the tow. Bathysphyraenops simplex Parr, 1933 in World Register of Marine Species (accessed 25 May 2020); Howella simplex (Parr 1933) in Heemstra in Carpenter and De Angelis (2016), and Fricke et al. (2020).