Paserine or Passerine: How To spell?
The word Paserine is misspelled against Passerine, a noun meaning "One of the Passeres."
Passerine has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pa & erine which should not be misspelled with single 'S'
Wrong Spelling:  pa-s-erine  Correct Spelling:  pa-ss-erine 
Find more wrongly spelled words of Passerine to spell it well.