batrachoidid vs monkfish

batrachoidid

noun
  • Any fish in the family Batrachoididae, the toadfishes. 

monkfish

noun
  • Any large bottom-dwelling anglerfish of the genus Lophius, such as Lophius piscatorius, of the Atlantic, having a large head and mouth. 

  • Angel sharks of the genus Squatina. 

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