Sylidian or Syllidian: How To spell?

The word Sylidian is misspelled against Syllidian, a noun meaning "Any one of numerous species of marine annelids of the family Syllidae."

Syllidian has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings sy & idian which should not be misspelled with single 'L'
Wrong Spelling:  sy-l-idian 
Correct Spelling:  sy-ll-idian 
Find more wrongly spelled words of Syllidian to spell it well.