Hyoganoidau or Hyoganoidei: How To spell?

The word Hyoganoidau 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 'AU'
Wrong Spelling:  hyoganoid-au 
Correct Spelling:  hyoganoid-ei 
Check more misspelled words of Hyoganoidei to spell it correct.