Hydrocalus or Hydrocaulus: How To spell?

The word Hydrocalus is misspelled against Hydrocaulus, a noun meaning "The hollow stem of a hydroid, either simple or branched. See Illust. of Gymnoblastea and Hydroidea."

Word contains consecutive vowels 'AU' in between alphabets hydroc & lus is misspelled as 'A' as letter 'U' is phonetically igno
Wrong Spelling: hydroc-a-lus
Correct Spelling: hydroc-au-lus
Check more misspelled words of Hydrocaulus to spell it correct.