Siluroideu or Siluroidei: How To spell?

The word Siluroideu is misspelled against Siluroidei, a noun meaning "An order of fishes, the Nematognathi."

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