dorado vs grampus

dorado

noun
  • Coryphaena hippurus, the mahi-mahi or dolphin, a species of fish with a dorsal fin that runs the length of the body, also known for iridescent coloration. 

grampus

noun
  • Risso's dolphin, Grampus griseus, with a blunt nose. 

  • The hellbender salamander, Cryptobranchus alleganiensis. 

  • The killer whale, Orcinus orca. 

  • giant whip scorpion (Mastigoproctus giganteus) 

How often have the words dorado and grampus occurred in a corpus of books? (source: Google Ngram Viewer )