Ctenoidaun or Ctenoidean: How To spell?
The word Ctenoidaun is misspelled against Ctenoidean, a noun meaning "One of the Ctenoidei."
Ctenoidean has vowels 'ea' together mispronounced as 'au'Word contains consecutive vowels 'EA' in between alphabets ctenoid & n is misspelled as 'AU'
Wrong Spelling:  ctenoid-au-n  Correct Spelling:  ctenoid-ea-n 
Check more misspelled words of Ctenoidean to spell it correct.