Rhodesia^ Angola, and Northern Nigeria. 131 



Major C. H. B. Grant has now kindlj presented three topo- 

 typical examples, two males and a female, collected by iiim 

 in the Lindi District in July 1919. On comparing these 

 with the specimens from the Chinsali District, the latter are 

 immediately seen to differ by their richer and deeper colora- 

 tion. The Rhodesian animal may therefore be described as 



Oreofragus oreotragus centralis, subsp. n. 



Like 0. 0. aceratos, but general colour of upper parts 

 deeper and richer. 



Upper surface of head, neck, and back briglit, deep 

 ochraceous in general colour, the tint differing from that seen 

 ill the corresponding parts of aceratos to the extent of the 

 difference between the "ochraceous buff" and the "raw 

 sienna " of Ridgway ; the colour is most intense upon the 

 nape and over the shoulders. Rump, in some specimens, 

 grey, like the outer parts of the thighs, in others more or less 

 invaded by the ochraceous tint of the fore parts. No white 

 preorbital patches upon the face (these being conspicuous in 

 aceratos). Upper surface of muzzle dusky ; top of head 

 between and in front of ears irregularly blackened. Ears as 

 in aceratos, but the white patch on each proectote smaller. 

 Under surface while, save for the broad ochraceous collar. 

 Dorsal surfaces of limbs grey, somewhat darker than in 

 aceratos ; the dusky hoof-patches slightly more extensive. 



Skull not peculiar; females hornless. 



Type. An adult male. B.M. no. 7.11. 15. 6. Collected 

 in the South Chinsali District and presented to the British 

 Museum by Mr. R. L. Harger. 



Uab. North-east Rhodesia. 



Unfortunately none of the four specimens from the type- 

 locality is dated. The examples in the collection from 

 Zomba and the Mlanje Mountains are intermediate between 

 aceratos •An(\. ceyitralis ; in general colour they ap])roacli the 

 former, but in the characters of the face and ears they more 

 nearly resemble centralis. Possibly these two subspecies 

 intergrade in the country to the south of Lake Nyasa. 



On the west coast, in Angola, anotiier subspecies, a|)pa- 

 rently allied to aceratos, has been discovered. This may Le 

 described as 



Oreotragus oreotragus iyleri, subsp. n. 



A light-coloured representative of 0. a. aceratos ; without 

 dark hoof-patches. 



9* 



