ORIBI— DIKDIKS — BE IRA — D UIKERBOKS 95 



Intermediate, between the royal antelope and the under-mentioned sunis are 

 N. batesi from the Cameruns and iV. harrisoni of the Semliki Valley. Skull- 

 characters are the chief distinguishing features of the sunis, of which one species, 

 iV. moschatus, inhabits part of the mainland of Zanzibar and two small islands off 

 the coast, while the second, iV. living 'stonianus, ranges from Mozambique to 

 Zululand, where it is represented by a special local race. 



The Cape oribi (Oribia scoparia) is the typical representative of 

 another genus containing several species of sandy-coloured antelopes 

 of considerably larger size than the members of the preceding group. Oribis are 

 recognisable by a bare patch of glandular skin behind each ear, thus recalling the 

 reedbucks ; and have no tuft of hair on the crown of the head. The typical Cape 

 species, which stands about 24 inches at the shoulder, is of an earthy yellow and 

 white colour, thereby closely resembling the ground of the districts in which 

 it is found. Among other species may be mentioned the Abyssinian oribi (0. 

 montana), the black -tailed 0. nigricaudata of Senegal and Gambia, and the 

 East African 0. haggardi, specially distinguished by the unusually stout horns 

 of the bucks. 



The African shore of the Red Sea and the coast range of 

 Dlkdiks. . 



Abyssinia, as well as the adjacent districts of Somaliland, are the 



homes of a curious little antelope known to the Arabs either as the Beni-Israel or 

 the dikdik, and to naturalists as Salt's dikdik (Madoqua saltiana). This species 

 typifies a genus, all the members of which are characterised by the inflation and 

 ti'unk-like form of the muzzle, although there is a certain amount of specific 

 variation in regard to the degree of development of this feature. In height this 

 diminutive antelope stands only 14 or 15 inches. Other species inhabit particular 

 districts of Somaliland ; while to the southward, in addition to other East African 

 species, the group is represented in Damaraland by M. damarensis, and by 

 M. naso-guttata in the Lake Baringo area. M. guentheri of Somaliland is a well- 

 known representative of the group in which the nose is most trunk-like ; this 

 group constituting the subgenus (or genus) Rhynchotragus. 



A small mountain antelope from Somaliland, characterised by 

 the large size of its hoofs, and known as the beira (Borgatragus 

 mengesi), is believed to be related to the dikdiks, although at one time associated 

 with the gazelles. 



The duiker boks, so called from the movements of the typical 

 Duikerboks. . * . . 



southern species, form a totally distinct group of antelopes, character- 

 ised by the presence of tufts of hair at the base of the small straight horns 

 (generally present in both sexes), and the long series of pores formed by the face- 

 glands below the eyes. The typical duikerbok (Cephalophus grimmi), which 

 ranges from Cape Colony to Angola on the west and Somaliland and Abyssinia 

 on the east, stands about 23 inches at the withers, and measures in length of head 

 and body about 39 inches, with an additional 3 to 5 inches for the tail. The black 

 horns are straight and slender, smooth at the tips and roughened at the bases, with 

 a length of from 4 to 5 inches. This species is more abundant near the coast than 

 inland, particularly on plains with plenty of covert. When pursued, it leaps high, 

 as if to see above the bushes in which it shelters during the day. As is the case 



