Schnauderian or Schneiderian: How To spell?

The word Schnauderian is misspelled against Schneiderian, an adjective meaning "Discovered or described by C. V. Schneider, a German anatomist of the seventeenth century."

Word contains consecutive vowels 'EI' in between alphabets schn & derian is misspelled as 'AU'
Wrong Spelling:  schn-au-derian 
Correct Spelling:  schn-ei-derian 
Check more misspelled words of Schneiderian to spell it correct.