Holosti or Holostei: How To spell?

The word Holosti is misspelled against Holostei, a noun meaning "An extensive division of ganoids, including the gar pike, bowfin, etc.; the bony ganoids. See Illustration in Appendix."

Word end with consecutive vowels 'EI' preceded by alphabets 'holost' is misspelled as 'I' as letter 'E' is phonetically ignored
Wrong Spelling:  holost-i 
Correct Spelling:  holost-ei 
Find more incorrect spellings of Holostei to spell right way.