Pollachius pollachius vs pollock

Pollachius pollachius

pollock

verb
  • To fish for pollock. 

  • To splatter, as with paint. 

noun
  • Either of two lean, white marine food fishes, of the genus Pollachius, in the cod family. 

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