430 Mr. R. I. Pocock on some 



glands, set more towards the inner side of the leg than in 

 gazelles, were covered for the most part with white hairs 

 stained with yellow secretion at the base. The inguinal 

 glands, however, were not or scarcely invaginated, being 

 represented by a thick tuft of longish hairs arising from a 

 thickened area of skin close to the scrotum and covered with 

 an abundance of yellow powdery secretion. Although there 

 was no definite pocket, these glandular hairy areas had the 

 appearance of being capable of invagination, and thus of 

 reproducing the condition of pockets with protruding hair 

 described and figured in this species in 1910. 



Ourebia montana, Cretzsch. 

 A female example of this species from the Soudan (G. 

 Blaine) agreed with 0. nigricaudata in every particular so 

 far as the cutaneous glands were concerned, the inguinal 

 glands being definite pouches filled with hair protruding from 

 the orifice. 



Ourebia ourebi, Zimm. 



No example of this South-African species had been seen 

 when I wrote my paper in 1910. 



A young male that died in the Gardens in 1911 agreed in 

 the structure of its preorbital, carpal, and pedal glands with 

 (). nigricaudata. As in 0. nigricaudata, the bare patch below 

 the ear showed no sign of being glandular ; but each inguinal 

 gland consisted of a very large mat of rather coarse white 

 hair holding a quantity of powdery secretion smelling like 

 "cold cream" ointment. The skin beneath the hair was 

 pale-coloured and not invaginated. The surrounding skin, 

 as far out as the inner side of the thighs and as far forwards 

 as the penis, was naked and lead-coloured. 



A remarkable difference between this species and 0. nigri- 

 caudata was the arrangement of the four mamma? in a trans- 

 verse line in front of the scrotum. In 0. nigricaudata the 

 mammae form a quadrate figure wider in front than behind. 



The interesting points for future confirmation or refutation 

 connected with these species of oribi may be tabulated as 

 follows : — 



a. Inguinal glands regresented by a great tuft 

 of uninvaginated hair on each side ; the 

 four mamuife arranged in a transverse line, ourebi. 



«'. Inguiual glands represented by a smaller 

 tuft of partially invaginated hair on each 

 sidH ; arrangement of mammse quadri- 

 lateral nigricaudata & montana. 



