Cirostomi or Cirrostomi: How To spell?

The word Cirostomi is misspelled against Cirrostomi, a noun meaning "The lowest group of vertebrates; -- so called from the cirri around the mouth; the Leptocardia. See Amphioxus."

Cirrostomi has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings ci & ostomi which should not be misspelled with single 'R'
Wrong Spelling:  ci-r-ostomi 
Correct Spelling:  ci-rr-ostomi 
Find more incorrect spellings of Cirrostomi to spell right way.

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