Fisipedia or Fissipedia: How To spell?
The word Fisipedia is misspelled against Fissipedia, a noun meaning "A division of the Carnivora, including the dogs, cats, and bears, in which the feet are not webbed; -- opposed to Pinnipedia."
Fissipedia has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings fi & ipedia which should not be misspelled with single 'S'
Wrong Spelling:  fi-s-ipedia  Correct Spelling:  fi-ss-ipedia 
Find more wrongly spelled words of Fissipedia to spell it well.