raccoon fox vs ringtail

raccoon fox

ringtail

noun
  • A small carnivorous mammal, Bassariscus astutus, somewhat like a raccoon, native to the southwestern United States and Mexico 

  • A common ringtail possum (Pseudocheirus peregrinus), native to eastern Australia 

  • A capuchin monkey (Cebus spp.) 

  • Any of various damselflies of the genus Austrolestes, of Australia, New Zealand and South Pacific islands 

  • A ringsail. 

  • A raccoon (Procyon spp, especially Procyon lotor) 

  • A ring-tailed lemur (Lemur catta) 

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