Polypteroidi or Polypteroidei: How To spell?

The word Polypteroidi is misspelled against Polypteroidei, a noun meaning "A suborder of existing ganoid fishes having numerous fins along the back. The bichir, or Polypterus, is the type. See Illust. under Crossopterygian."

--> Word end with consecutive vowels 'EI' preceded by alphabets 'polypteroid' is misspelled as 'I' as letter 'E' is phonetically ign
Wrong Spelling:  polypteroid-i 
Correct Spelling:  polypteroid-ei 
Find more incorrect spellings of Polypteroidei to spell right way.

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