Anuli or Annuli: How To spell?
The word Anuli is misspelled against Annuli, which is plural of "Annulus"
Annuli has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings a & uli which should not be misspelled with single 'N'
Wrong Spelling:  a-n-uli  Correct Spelling:  a-nn-uli 
Check more misspelled words of Annuli to spell it correct.