Cutlases or Cutlasses: How To spell?
The word Cutlases is misspelled against Cutlasses, which is plural of "Cutlass"
Cutlasses has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings cutla & es which should not be misspelled with single 'S'
Wrong Spelling:  cutla-s-es  Correct Spelling:  cutla-ss-es 
Check more misspelled words of Cutlasses to spell it correct.