14 Mr. D. A. Bannerman : A Revision 



Range. Southern Cameroon (excluding Cameroon Mt.), 

 River Ja District. 



Sharpe described H. s. plunibescens from a very young 

 male bird, which Mr. G. L. Bates had procured at Efulen 

 on the 21st of January, 1902. In his original description 

 he compared it with H. principalis, but it is in reality much 

 more closely allied to H. s. simplex. Five years after the 

 type had been procured, Mr. Bates procured a second speci- 

 men from the River Ja, and in 1910 three more examples — 

 an adult male and female and a young male. Upon receiving 

 the first adult male it was discovered that it in no way 

 differed from the type of H. seimundi Sharpe (which I have 

 shown to be synonymous with H. poensis) ; and this was 

 pointed out by Mr. W. R. Ogilvie-Grant (Trans. Zool. Soc. 

 xix. 1910, p. 448), and later by Bates himself (' Ibis,' 1911, 

 p. 488), where he notes that his H. plumb esc ens is synony- 

 mous with H. tessmanni Reichw. 



Mr. Ogilvie-Grant and Mr. Bates were certainly correct 

 when they pointed out that the males of H. seimundi and 

 H. poensis were indistinguishable, but the female, which had 

 never been compared, proves that H. s. plumbescens and H. s. 

 poensis are distinct races, hens of H. s. plumbescens having 

 white under tail-coverts, H. s. poensis grey. Mr. G. L. 

 Bates made the valuable discovery that the grey males have 

 a brown female. He also gives a description of the nest in 

 his interesting paper. 



Haplopelia simplex jacksoni. 



Haplopelia jacksoni Sharpe, Bull. B. O. C. xiv. 1904, 

 p. 93 : Ruwenzori. 



Range. Ruwenzori, Uganda. 



The type of this species is an immature bird, as has 

 already been pointed out by Mr. Ogilvie-Grant in the 

 Report on the Ruwenzori Collection (Trans. Zool. Soc. xix., 

 1910, p. 447). 



Two adult males were obtained by the Ruwenzori Expe- 

 dition, and show that the bird is very closely allied to H. s. 

 simplex' — in fact, it is often difficult to name individual 

 birds of either race from colour alone. When a series is 



