lindworm vs ophidian

lindworm

noun
  • A wingless serpentine dragon having two arms. 

  • A draconic creature, similar to a wyvern. 

ophidian

noun
  • Any species of the suborder Serpentes; a snake or serpent. 

adj
  • Of or pertaining to the suborder Serpentes; of, related to, or characteristic of a snake or serpent. 

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