tSlTTACIDii; 



PCEOCEPHALUS 



223 



Key of the Genera. 



A. Nostrils exposed, placed in the middle of a 



wide and swollen cere Poeoceplialus^ p. 223. 



B. Nostrils concealed by feathers at the inner 



edge of a very narrow cere Agcrpornis, p. 231. 



Subfamily I. PIONIN^. 



Tail short and broad, square or rounded, usually about half 

 the length of the wing ; bill moderately strong ; upper mandible 

 usually notched and always with the palatal portion of the hook 

 furnished with a file-like surface ; cere surrounding the whole base 

 of the bill, swollen in front of the nostrils and always naked ; wings 

 with the second, third, and fourth primaries generally the longest ; 

 general colour mostly green. 



Genus I. PYOCEPHALUS. 



Type. 



Poicephalus, Sicains. Class. B. ii, p. 301 (1837) P. senegalus. 



Poeocephalus, Strickl. Ann. Mag. N. H. vii, p. 34 

 (1841) 



Bill stout and strong, the under mandible deeper than long, 

 edge of the upper mandible notched, the under or palatal surface 



Fig. 75. — Witg of Pacceihalus fxiscicainUiis frcm below, x |. 



of the hooked anterior portion roughened and file-like ; cere 

 naked and swollen, the nostrils well within its limits ; wing long 

 and pointed, the second and third primaries equal and longest, the 

 first and fourth rather shorter. About fourteen species of this 



