Pycnaspidan or Pycnaspidean: How To spell?
The word Pycnaspidan is misspelled against Pycnaspidean, an adjective meaning "Having the posterior side of the tarsus covered with small irregular scales; -- said of certain birds."
Pycnaspidean has vowels 'ea' together mispronounced as 'a'Word contains consecutive vowels 'EA' in between alphabets pycnaspid & n is misspelled as 'A'
Wrong Spelling:  pycnaspid-a-n  Correct Spelling:  pycnaspid-ea-n 
Find more wrongly spelled words of Pycnaspidean to spell it well.