Heymatosac or Haematosac: How To spell?

The word Heymatosac is misspelled against Haematosac, a noun meaning "A vascular sac connected, beneath the brain, in many fishes, with the infundibulum."

Haematosac has vowels 'ae' together mispronounced as 'ey'
Word contains consecutive vowels 'AE' in between alphabets h & matosac is misspelled as 'EY'
Wrong Spelling:  h-ey-matosac 
Correct Spelling:  h-ae-matosac 
Find more incorrect spellings of Haematosac to spell right way.

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