lacertilian vs reptiliform

lacertilian

adj

  • Lizardlike. 

  • Relating to the reptilian suborder Lacertilia. 

noun

  • A reptile of suborder Lacertilia. 

reptiliform

adj

  • Resembling or relating to reptiles. 

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