green damselfish vs maomao

green damselfish

maomao

noun

  • Scorpis violacea (blue maomao) 

  • Scorpis aequipinnis (sea sweep) 

  • Abudefduf abdominalis (green damselfish) 

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