Batoideu or Batoidei: How To spell?

The word Batoideu is misspelled against Batoidei, a noun meaning "The division of fishes which includes the rays and skates."

Word ends with consecutive vowels 'EI' preceded by alphabets 'batoid' is misspelled as 'EU'
Wrong Spelling:  batoid-eu 
Correct Spelling:  batoid-ei 
Check more misspelled words of Batoidei to spell it correct.