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 Symphurus callopterus Munroe & Mahadeva, 1989 . Chocolate Tonguefish or Feather Tonguefish. To 40 cm ( 15.7 in ) TL ( Vargas et al. 2020 ). Pacific coast of southern Baja California (Munroe et al. in Fischer et al. 1995 ) to northern Peru ( Chirichigno and Vélez 1998 ), including lower Gulf of California (Munroe et al. in Fischer et al. 1995 ). Benthic; depth: 18–636 m ( 59–2,086 ft ) (min.: Munroe et al. in Fischer et al. 1995 ; max.: Nakaya et al. 2009 ).