escolar vs gempylid

escolar

noun
  • Any of several other perciform fish of the family Gempylidae (snake mackerels). 

  • Any fish of species Ruvettus pretiosus, oilfish. 

  • Lepidocybium flavobrunneum, one of the snake mackerels. 

gempylid

noun
  • Any fish of the escolar family, Gempylidae. 

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