252 Mr. W. L. Sclater on the [Ibis, 



Distr. The mountains of Abyssinia from Senafe south- 

 wards through the high plateau of central Africa to southern 

 Rhodesia, where the Museum has a young example collected 

 by Swyunerton at Chirinda. 



That there are two distinct pliases of this species admits 

 now of no doubt ; the series in the Museum is a very fine 

 one, and there are both young and adults of either phase. 

 RiippelPs pi. 16, fig. ] is an adult in the black phase, 

 {\^. 2 a not quite adult in the white-bellied phase ; pi. 17, 

 fig. 1 is a young bird in the white-bellied phase, fig. 2 a 

 young bird in the black phase. 



Buteo jakal archeri (PI. V.). 



Buteo jakal archeri W. L. Sclater, Bull. B. O. C. xxxix. 

 1918, p. 17 : Waghar, Somaliland. 



The original description is as follows : — 



" Resembling Buteo jakal augur, but the white on the 

 scapulars and back replaced by reddish; below from the lower 

 breast posteriorly to the under tail-coverts, including the 

 thighs, rich rufous instead of white ; a few splashes of the 

 same rufous on the under wing-coverts ; chin, throat, and 

 upper breast white, with a few spots of black and a slight 

 trace of rusty stain on some of the feathers. 'Iris dark 

 brown, bill dark slate, cere and legs orange, claws blue 

 slate ' (Bury). 



" Measurements Wing 400 mm. ; tail 195 ; tarsus 85 ; 

 bill, without cere, measured with callipers, 28. 



" Type, a male from Waghar, Somaliland, collected by 

 Mr. G.W. Bury, 6 Oct., 1905. B.M. reg.no. 1908/12/12 «/5. 



" There is another example in the Museum marked 

 •' 30 miles inland from Berbera,' obtained by Mr. E. Lort 

 Phillips and identified by Shelley ('Ibis,' 1885, p. 391) 

 as B. augur. 



"Two other examples collected by Mr. G, F. Archer, 

 C.M.G., H.M.'s Commissioner for the Somaliland Protecto- 

 rate, at Bihendula and Lower Sheikh in Somaliland are in the 

 collection of Col. Stephenson Clarke, through whose courtesy 

 I have been able to exhibit them to vou here to-night. 



