melanistic vs melanoid

melanistic

adj

  • Of, pertaining to, or exhibiting melanism. 

melanoid

adj

  • Relating to, or afflicted with, melanosis. 

  • Relating to, or resembling, melanin. 

noun

  • Synonym of melanoidin 

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