Vitrela or Vitrella: How To spell?

The word Vitrela is misspelled against Vitrella, a noun meaning "One of the transparent lenslike cells in the ocelli of certain arthropods."

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