Hyoganoidey or Hyoganoidei: How To spell?

The word Hyoganoidey is misspelled against Hyoganoidei, a noun meaning "A division of ganoid fishes, including the gar pikes and bowfins."

Word ends with consecutive vowels 'EI' preceded by alphabets 'hyoganoid' is misspelled as 'EY'
Wrong Spelling:  hyoganoid-ey 
Correct Spelling:  hyoganoid-ei 
Find more incorrect spellings of Hyoganoidei to spell right way.