178 ANTELOPES 



dark brown terminally, broken by a bright buff ring below the black 

 point. The dark frontal blaze characteristic of the latter species is 

 almost entirely absent in cotto7ii. The tail is very short, less than one- 

 third the length of that of goslingi. The horns are stout and well- 

 ridged, as in the Welle species, but not equalling those of O. haggardi 

 in this respect. 



The skull is broader, stouter, and shorter in front of the sockets 

 of the eyes than in Gosling's oribi. The shoulder -height is about 

 23 inches, and the weight 38 lb. 



Inclusive of the present animal, there are now known to be four 

 types of oribi in north-eastern Africa, viz. — 



O. inontana in Abyssinia and the Sudan, occupying the whole 

 area down to 5" N. latitude, and distinguishable by its short slight 

 horns ; O. haggardi on the coast ; O. kenyce round Mt. Kenia ; and 

 O. goslingi from the Welle basin. 



Of these O. kenycB, by its black tail and narrow pit in front of the 

 eye, shows affinity with the more southern O. hastata, from Mozam- 

 bique ; while O. haggardi differs from all the rest by its shallow skull 

 and the compression of its horns posteriorly so as to make a more or 

 less distinctly marked longitudinal ridge. From O. ino)itana the present 

 species is separable by its long stout horns, while from O. goslingi it 

 differs in wanting the black patch on the face, characteristic of that 

 species. 



THE GRYSBOK 



{RJiaphiceros melanotis) 



Grysbok OR Grys Sieinbok, Cape Dutch ; Inhlengana, SWAZI AND 

 Matonga ; Isikupi, Transvaal Basuto ; Kidu, Makua ; 

 Timba, Makalala. 



(Plate vi, fig. 10) 



The grysbok (pronounced rysbok) and its relatives form a group 

 distinguished from the oribis by the absence of a bare patch below the 

 ear, and by the smooth horns rising nearly vertically from the head, as 

 well as by the small size of the pits in the skull for the face-glands. 

 Knee-tufts are wanting ; but the lateral hoofs may be present or 

 absent. 



The grysbok is characterised by the presence of small lateral hoofs 

 coupled with a speckled coat. In general colour the upper-parts are 

 deep chocolate-red abundantly stippled with white (owing to the inter- 



