Hypocleda or Hypocleida: How To spell?

The word Hypocleda is misspelled against Hypocleida, which is plural of "Hypocleidium"

Word contains consecutive vowels 'EI' in between alphabets hypocl & da is misspelled as 'E' as letter 'I' is phonetically ignor
Wrong Spelling:  hypocl-e-da 
Correct Spelling:  hypocl-ei-da 
Find more incorrect spellings of Hypocleida to spell right way.