Protaydea or Proteidea: How To spell?

The word Protaydea is misspelled against Proteidea, a noun meaning "An order of aquatic amphibians having prominent external gills and four legs. It includes Proteus and Menobranchus (Necturus). Called also Proteoidea, and Proteida."

Word contains consecutive vowels 'EI' in between alphabets prot & dea is misspelled as 'AY'
Wrong Spelling:  prot-ay-dea 
Correct Spelling:  prot-ei-dea 
Find more incorrect spellings of Proteidea to spell right way.