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 Urotrygon aspidura ( Jordan & Gilbert, 1882) . Panamic Stingray or Spinytail Round Ray. To 50 cm ( 19.7 in ) TL (Amezcua Linares 1986), and at least 23 cm ( 9.2 in ) DW ( Robertson and Allen 2002 ). Bahía Magdalena, southern Baja California ( De La Cruz-Agüero et al. 1994 ) to Paita, Peru ( Chirichigno and Vélez 1998 ), and Gulf of California (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). Benthic; depth: 3–100 m ( 9–328 ft ) (min.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California; max.: Amezcua Linares 1996 ).