AND SOME ANTELOPES OF ANGOLA. 325 



appears also to be greyer. There does not, therefore, seem to be 

 a line of geographical progression from grey to fulvous in any 

 given direction; but material on which to work is sadly deficient. 



There are no difl'erences to be detected in skulls from nny of 

 these places. 



Body measurements in inches of an adult male Reedbuck from 

 the Luando, Angola: — 



Head and body 62 



Tail :.... 9i 



Mean height at shoulder 38 



Girth behind shoulder 41 



Length of ear from notch to tip 6| 



A neio Oribi. 



OUREBIA RUTILUS, Sp. n. 



A beautiful Oribi, distinguished by its brilliant colour, wavy 

 or curly hair, and the obsolescence of the bare patch below the 

 ear. 



Skin. — Colour of upper parts uniform tawny orange, changing 

 abruptly to white underneath. The Avhite area extends higher 

 on the flanks than usual. Inside of ears, superciliary stripe, 

 lips, chin, and throat white. Back of forelegs, hoofs, and of 

 hindlegs to hocks white. There remains a slight trace only of 

 the usual round subauricular patch, this area being almost com- 

 pletely covered with fine, short, huffish hairs. Tail black and very 

 short, about 30 mm. Skull rather long and narrow, with long 

 nasals, flat straight profile, and comparatively shallow laciymal 

 pits. Dimensions of typical skull: length 177 mm., breadth 

 75 mm., nasals 67 mm., upper tooth-row 52 mm. 



Hab. The country between the Quanza and Luando Rivers, 

 Angola,. 



Type. Ad. (S , skin and skull, B.M. no. 20.4.27.40. Collected 

 and presented by G. Blaine. 



There are six specimens of this Oribi in the B. M. collection 

 from the above locality — two males and four females, all adult, 

 shot by the writer in the autumn of 1919. They are remarkably 

 uniform in colour, one specimen only, a female, differing from 

 the rest in having a blackish patch on the crown. In one char- 

 acter, viz. the suppression of the subauricular patch, they show 

 some affinity to the Cape Oribi, but have much shorter tails, 

 so short, in fact, as to be almost rudimentary. 0. hastata from 

 Nyasaland has a pronounced bare subauricular patch. jSTeither 

 has the long curly hair and brilliant colouring of this species. 



In comparing skulls, those of Oribis from the Cape are rela- 

 tively shorter and broader, with shoi-t nasals; those from Rhodesia 

 and Kyasaland are longer and narrower, with long nasals. The 

 skulls of 0. rutilus approximate the latter, but are straighter in 

 pvofile than either and have shallower lacrymal pits. 



