mottled grampusn. now rare Risso's dolphin, Grampus griseus.
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1884 G. B. Goode in G. B. Goode et al. Fisheries U.S.: Sect. I 14 On the California coast occurs the Whiteheaded or Mottled Grampus, Grampus Stearnsii Dall.
1985 L. WatsonWhales of World (rev. ed.) 254/2 Local names [of Grey or Risso's Dolphin]. Grampus, grey grampus, mottled grampus.