fathead vs rose fish

fathead

noun
  • A labroid food fish of California; the California sheephead. Semicossyphus pulcher. 

  • An idiot; a fool. 

  • A blobfish, Psychrolutes microporos 

  • Any of several species of fish of the genus Cubiceps 

  • A cyprinid fish of the Mississippi valley, Pimephales promelas, the black-headed minnow. 

rose fish

noun
  • A large marine food fish, Sebastes norvegicus, that lives off the North Atlantic coasts of Europe and North America. 

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