Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico Author Love, Milton S. 0000-0003-0981-0061 love@lifesci.ucsb.edu Author Bizzarro, Joseph J. 0000-0002-2412-9357 joe.bizzarro@noaa.gov Author Cornthwaite, Maria 0000-0002-1528-3272 maria.cornthwaite@dfo-mpo.gc.ca Author Frable, Benjamin W. 0000-0003-4525-0671 bfrable@ucsd.edu Author Maslenikov, Katherine P. 0000-0003-0981-0061 love@lifesci.ucsb.edu text Zootaxa 2021 2021-10-19 5053 1 1 285 journal article 2792 10.11646/zootaxa.5053.1.1 75ffcff3-6336-4f6a-8d0b-94c082519099 1175-5326 5578008 295D03A4-589A-4E3F-B030-5121EF7D7398 Bathylagus pacificus Gilbert, 1890 . Pacific Blacksmelt or Slender Blacksmelt. To about 25 cm ( 10 in ) SL ( Fitch and Lavenberg 1968 ). Southern Japan and Sea of Okhotsk (Kanayama in Amaoka et al. 1983 ) to southern Bering Sea to off Bahía Magdalena ( 24°10.9’N , 113°06.9’W ), southern Baja California (Personal Communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California), Gulf of California (Mecklenburg et al. 2002), and 02°36’N , 112°57’W (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). Adults generally in lower mesopelagic and bathypelagic and not ascending to epipelagic depths; depth: 150 to perhaps about 4,100 m ( 492–13,448 ft ) (min.: Mecklenburg et al. 2002; max.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). The maximum depth of 7,700 m ( 25,256 ft ) (Mecklenburg et al. 2002) is considered unlikely and probably reflects “incidental catches during trawl hauling to the surface” ( Fujii et al. 2010 ).