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 Rhonciscus bayanus ( Jordan & Evermann, 1898 ) . Freshwater Grunt or Purplemouth Grunt . To 41 cm ( 16.1 in ) SL ( Jiménez Prado et al. 2015 ). Bahía Magdalena, southern Baja California ( Rodríguez-Romero et al. 2011 ) to Rio Tumbes , Peru ( Chirichigno 1974 ) , and at mouth of Gulf of California ( Robertson and Allen 2002 ). Marine, brackish and fresh waters (Jiménez-Prado et al. 2014); depth: 0–10 m ( 33 ft ) ( Robertson and Allen 2002 ). We follow Tavera et al. (2018) in moving Pomadasys bayanus Jordan & Evermann, 1898 to the genus Rhonciscus .