Euganoide or Euganoidei: How To spell?

The word Euganoide is misspelled against Euganoidei, a noun meaning "A group which includes the bony ganoids, as the gar pikes."

Word end with consecutive vowels 'EI' preceded by alphabets 'euganoid' is misspelled as 'E' as letter 'I' is phonetically ignore
Wrong Spelling:  euganoid-e 
Correct Spelling:  euganoid-ei 
Check more misspelled words of Euganoidei to spell it correct.