670 Messrs. Sclater and Mack worth- Praed on [This, 



Very similar to S. b. brachyura, but richer in colour 

 underneath and with a richer rufous e^^ebrow and chin. 

 We hiive no specimens of this race, but one bird from the 

 river Bamingui, the type of S. olivice, Alexander, may 

 possibly belong to it. 



Range. Eastern Cameroon, possibly to Bamingui river. 



•S. SyLVIETTA brachyura DILUTIOR. 



Sylriella c/aiuipi dilutior Reichw. O. M. 1916, p. 154: 

 Kuwenzori. - 



Like .S*. b. carnapi, but the underside a slightly paler 

 rufous. In some examples there is a considerable amount 

 of white on the belly. Wing 53-60 mm. 



Range. Uganda, the upper White Nile, and. the Balir el 

 Gliazal. 



4. Sylvjktta brachyura micrura. 



Troglodytes ndcrwus Riippell, Neue Wirbelth. 1835, 

 p. 109: Kordofan. 



We have no specimens from Kordofan, but Neumann 

 (J. f. O. 1906, p. 279), who has examined Ruppell's types, 

 states that they belong to a desert form and are distinct 

 from birds of the Nile valley. This appears to conclusively 

 fix the name micrura for this form, although Riippell's figure 

 is more like the Abyssinian race. 



5. Si'LVJETTA brachyura NILOTICA. 



Syhietia bmc/n/ura nilotica Neum. J. f. O. 1906, p. 279 : 

 Shabeisha, White Nile Province. 



This lace is distinguished by Neumann from S. b. micrura 

 on account of its richer coloration and shorter bill. It is 

 distinguishable from S. b. carnapi, to which it is very closely 

 allied, by the slightly paler rufous of the breast. It is in 

 fact intermediate between S. b. carnapi aiul S. b. micrura. 

 Chin slightly paler but not white, eyebrow rufous.. Wing 

 52-58 mm. 



Range. White Nile valley, east to Eritrea, and the western 

 hall of Abvssinia. 



