Ctenoiden or Ctenoidean: How To spell?

The word Ctenoiden is misspelled against Ctenoidean, a noun meaning "One of the Ctenoidei."

Ctenoidean has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets ctenoid & n is misspelled as 'E'
Wrong Spelling:  ctenoid-e-n 
Correct Spelling:  ctenoid-ea-n 
Find more incorrect spellings of Ctenoidean to spell right way.

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