10 Captain G. E. Shelley on the 



b. Back, tail, and wing, when'closed, nearly uni- 

 form olive. Crown and sides of the bead 

 nearly similar in both sexes, the black there 

 being confined to a well-marked ocular 

 band. 

 c\ Bill rather more slender. Males with the 

 head slightly paler and with an olive 

 shade on the nape. Females with the 

 crown very similar to the male's ; throat 

 and sides of the head more strongly 



tinted with chestnut 135. P. ocularius. 



d}. Bill rather stouter. Males with no olive 

 shade on the nape ; yellow of the head 

 darker, being more strongly tinted with 

 chestnut. Females with the crown olive, 

 only passing into yellow on the fore- 

 head ; throat pale yellow ; sides of the 

 head with scarcely any trace of chestnut 

 shade 136. P. hrachypterus. 



F. Yellow Group. 



fl. Much larger : wings more than 3 inches. 

 fl\ With a strong chestnut shade on portion 

 of the head and neck. 

 a^. Entire front half of the head and the 



throat shaded with chestnut 137 P. capensis. 



P. Upper half of the head and sides of the 

 neck shaded with chestnut. Chin and 



upper throat bright yellow 138. P. jn-inceps. 



c'. Crown, nape, and sides of the neck 

 bright yellow. Entire throat and 



cheeks strongly shaded with chestnut. 139. P. xanthoptterus. 



h^. With no strong chestnut shade on the 



plumage. 



d"^. General plumage slightly more olive. 



Inner webs of the quills narrowly 



edged with ^buff. The tail-feathers 



darker, and with no pale edges 140. P. xanthops. 



e*. General plumage sHghtly yellower. The 

 inner webs of the quills and tail- 

 feathers broadly edged with bright 



yellow 141. P. siibaureus. 



b. Much smaller : wings less than 3 inches, 

 c^ Upper back uniform. No chestnut tm the 

 forehead. 



