Teleoste or Teleostei: How To spell?

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

Word end with consecutive vowels 'EI' preceded by alphabets 'teleost' is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  teleost-e 
Correct Spelling:  teleost-ei 
Find more incorrect spellings of Teleostei to spell right way.