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 Flagellostomias boureei (Zugmayer, 1913) . Threadbeard Dragonfish . To 37.5 cm ( 14.6 in ) SL ( Roberts et al. 2015 ). Circumglobal; western Pacific Ocean north to Japan (Fujii in Masuda et al. 1984 ); off Point Conception ( Berry and Perkins 1966 ) and southern California ( 32°18’N , 121°44’W ) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California) to southern Baja California ( 25°30’N , 116°W ) ( Parin and Scherbachev 1998 ). Depth: 0–1,825 m ( 5,986 ft ) (min.: Porteiro et al. 2017 ; max.: Morrow and Gibbs 1964 ).