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