Heteronereys or Heteronereis: How To spell?

The word Heteronereys is misspelled against Heteronereis, a noun meaning "A free-swimming, dimorphic, sexual form of certain species of Nereis."

Word contains consecutive vowels 'EI' in between alphabets heteroner & s is misspelled as 'EY'
Wrong Spelling:  heteroner-ey-s 
Correct Spelling:  heteroner-ei-s 
Find more incorrect spellings of Heteronereis to spell right way.