Teleosteu or Teleostei: How To spell?

The word Teleosteu is misspelled against Teleostei, a noun meaning "A subclass of fishes including all the ordinary bony fishes as distinguished from the ganoids."

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