procyonid vs trash panda

procyonid

noun
  • Any member of the family Procyonidae, a New World family of the order Carnivora, including the raccoons, coatis, kinkajous, olingos, ringtails and cacomistles. 

trash panda

noun
  • A raccoon, especially one that forages in garbage cans. 

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