636 Messrs. Sclater and Mackworth-Praed on [Ibif*, 



be satisfactorily determined on the females, and are as 

 follows : — 



1. D. G. ERYTHREiE Neum. (see above). 



Female with an almost black back and the under surface 

 almost white faintly washed with yellow. 



Range. Abyssinia westwards to Sennar and the Sobat 

 river. 



2. D. G. NYANZiE Neumann : Kavirondo. 



Female like D. g. erythrece^ but back not black but 

 brownish, underparts tawny ochraceous. 



Range. Uganda and British East Africa west of the Rift 

 valley. 



3. D. G. MALZACii (Heugl.) : White Nile. 



Female with the back dark ashy grey (lighter than 

 D. g. nyanzte) and the underparts more tawny. 



Range. Upper White Nile valley west through the Bahr el 

 Ghazal to the Shari river region and Lake Chad. 



4. D. G. GAMBENSis (Licht.) : Senegambia. 



Female with the back earthy-brown with a contrasting 

 ashy-grey head; below tawny orange. 

 Range. Senegal to North Nigeria. 



5. D. G. coNGicus Sharpe : Conde, Gaboon. 



Female with the head dark slaty strongly contrasting with 

 the earthy-brown back; below strongly washed with rich 

 rufous tawny, especially on the chest. 



Range. Portuguese Congo, probably ranging north into 

 Gaboon. 



Tschagra senegala senegala. 



Tschagra senegala (Linn.) ; Sclater in Shelley^s B. A. v. 

 p. 362. 



Telephonus senegalus (Linn.) ; Butler, Ibis, 1909, p. 81. 



[B. coll.] 1 nr. Pongo river Fel)., 1 Tembura Mch. B.G. 

 [Chr. coll.] 2 Tembura Apl., 4 Meridi Jan. Feb. B.G. ; 

 3 Yei Nov. L.E. 



