lacertian vs lacertine

lacertian

adj

  • Pertaining to or resembling a lizard; lizard-like. 

noun

  • A member of the Lacerta. 

lacertine

adj

  • Lizard-like; lacertian. 

noun

  • A lizard-like creature. 

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