Hawstella or Haustella: How To spell?

The word Hawstella is misspelled against Haustella, which is plural of "Haustellum"

Word contains consecutive vowels 'AU' in between alphabets h & stella is misspelled as 'AW'
Wrong Spelling:  h-aw-stella 
Correct Spelling:  h-au-stella 
Explore spell check of Haustella to spell without errors.

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