Subrachiales or Subbrachiales: How To spell?
The word Subrachiales is misspelled against Subbrachiales, a noun meaning "A division of soft-finned fishes in which the ventral fins are situated beneath the pectorial fins, or nearly so."
Subbrachiales has double "bb" is mispronounced as "b"Remember double 'BB' in between the strings Su & rachiales which should not be misspelled with single 'B'
Wrong Spelling:  Su-b-rachiales  Correct Spelling:  Su-bb-rachiales 
Check more misspelled words of Subbrachiales to spell it correct.