852 Messrs. Sclater and Mackwortli-Praed on [Il)is, 



Ibis, 1918, p. 643. Acrocejihahis scirjxiceus scirpaceus. Mr. 

 Witherby has sent iis two Reed-Warblers collected by 

 himself at Kawa and Shebesha which he refers to 

 A . s. macronyx, the eastern i-ace of A . scirpaceus. 

 We agree with his identification, and consider also 

 that the majority of the Butler specimens are probably 

 of this race. It does not seem possible, however, to say 

 exactly to which race any one specimen belongs, but the 

 series are, in colour, paler than the average European 

 birds. 



After A. s. schyaceus, therefore, should be in- 

 serted A. s. macronyx {Salicaria iiiacronyx Sevei'tzotf, 

 Turkestan Jevotn. in Izv. Obshch, Moskov. viii. 1873, 

 (2) p. 128 : Sir Darya), and, inasmuch as the Shebesha 

 specimen is the one mentioned on p. 644 under Acro- 

 cephahts 2Jalusiris, that species must be deleted from 

 the list. 



Ibis, 1918, p. 659. II ipjjolais pallida. Mr. Witherby has very 

 kindly sent us an example of Hippolais rama collected 

 by himself on the Nile at Kawa. On further examina- 

 tion we are also inclined to attribute at least four of 

 the Butler birds from Khartoum, and the Chapman 

 and Lynes specimen from Singa, to this species and not 

 to //. pallida. This is, of course, a new bird to the 

 Sudanese and probably to the African list. Sevei'al 

 birds collected by Alexander at Lake Chad seem also 

 to be nearer H. rama, and it will probably be found to 

 have a fairly extensive distrilnition in Africa. H. pallida 

 and H.rama are Ijy no means easy to tell apart, and the 

 Sudanese birds in particular do not seem to difier so 

 much as Asiatic specimens. 



After Hippolais jKillida, therefore, should be inserted 

 Hippolais rama {Sylvia rama Sykes, P. Z. S. 1832, 

 p. 89 : Deccan). 



Ibis, 1918, p. 664. PhylloscojJnstrochihistrocJdlus. Mr. Witherby 

 has sent us three Willow-Wrens from the White Nile 

 which are undoubtedly of the typical form, though 

 Mr, Butler's Khartoum series appear to be mainly 

 P. t. eversmanni. 



