canine vs mixed breed

canine

noun
  • Any member of Caninae, the only living subfamily of Canidae. 

  • A king and a nine as a starting hand in Texas hold 'em due to phonetic similarity. 

  • Any of certain extant canids regarded as similar to the dog or wolf (including coyotes, jackals, etc.) but distinguished from the vulpines, which are regarded as fox-like. 

  • In heterodont mammals, the pointy tooth between the incisors and the premolars; a cuspid. 

adj
  • Of, or pertaining to, a dog or dogs. 

  • Dog-like. 

  • Of or pertaining to mammalian teeth which are cuspids or fangs. 

mixed breed

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