Pteroglosal or Pteroglossal: How To spell?
The word Pteroglosal is misspelled against Pteroglossal, an adjective meaning "Having the tongue finely notched along the sides, so as to have a featherlike appearance, as the toucans."
Pteroglossal has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pteroglo & al which should not be misspelled with single 'S'
Wrong Spelling:  pteroglo-s-al  Correct Spelling:  pteroglo-ss-al 
Find more incorrect spellings of Pteroglossal to spell right way.