orange roughy vs spottail bass

orange roughy

noun
  • An edible deep-sea fish, Hoplostethus atlanticus, belonging to the slimehead family (Trachichthyidae). 

spottail bass

noun
  • The red drum, Sciaenops ocellatus, a marine fish with a dark spot near the tail. 

  • The freshwater snapper, Lutjanus fuscescens, a freshwater fish with a dark spot near the tail. 

How often have the words orange roughy and spottail bass occurred in a corpus of books? (source: Google Ngram Viewer )