clouded leopard vs snow panther

clouded leopard

noun
  • Either of the two leopard species, N.nebulosa and N.diardi, together constituting the genus Neofelis. 

  • A medium-sized, arboreal cat (Neofelis nebulosa) found in Southeast Asia. It has a disproportionately long tail and canines, and a tawny coat with dark, irregular, oval markings. 

snow panther

noun
  • snow leopard 

How often have the words clouded leopard and snow panther occurred in a corpus of books? (source: Google Ngram Viewer )