Lake Chad district; French Eqiiatorial Africa and (according to 

 Zedlitz) Adamaua in N. Cameroon. 



Distinguishini^ characters. -- Upper-parts pale brownish, iinder- 

 parts washed with browii rattier than grey. The birds become 

 paler as Lake Chad is approached and then grever in French 

 Equatorial Africa. 



"2. — Camaroptera griseoviridis tincta. 

 Cf. supra. 



Range. — Sierra Leone, Libéria, Gold Coast (coastal districts), 

 Southern Nigeria, Cameroon, Gaboon, N. Belgian Congo. 



Distinguishing characters. — Generallv darker in colouring 

 throughout. 



3. — Camaroptera griseoviridis harterti. 



Camaroptera griseoviridis hajterti Z.'EDI.itz, J. f. O., iqi i, p. 342 : 

 Northern Angola. 



Range. — Northern Angola. 



Distiiigjiishifig characters . — Darker than C. g. chrysocjiemus, 

 ont upperparts brownish, not grev as in tincta. 



Count Zedlitz has done a splendid pièce of work in monogra- 

 pbing this exceedinglv difficult genus. Dr Reichenow, in his great 

 work « lumped » ail the forais together and subséquent workers 

 had studiously avoided committing their views to paper. Whether 

 he is right or wrong in his déductions Count Zedlitz has paved the 

 way for ail future workers in this and certain other difficult groups 

 and the thanks of systematic ornithologists are therefore due 

 to him. 



