bottlenose vs bottlenose dolphin

bottlenose

noun
  • bottlenose dolphin. 

  • The beak or rostrum of a dolphin. 

  • bottlenose skate. 

  • bottlenose whale. 

bottlenose dolphin

noun
  • Tursiops truncatus, the common bottlenose dolphin, famous for its presence in aquarium shows. 

  • One of the species of gray dolphin in the genus Tursiops, between 2 and 4 meters in length inhabiting warm and temperate seas worldwide. 

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