314 



SABLE AND BEATRIX ANTELOPES 



horns of some length, present in both sexes, and of ;i longish 

 tail. They are all African in range. 



The type genus H'rppofrdijus has its horns placed above the 

 orbits; they are not twisted, but curved backwards. There are 

 three species in the genus. Of these the best known is H. niger, 

 the beautiful Sable Antelope. Its general colour is a rich, dark, 

 glossy brown with white stripes on the face, and with a white 

 belly. The other species are the Roan ^Vntelope, H. equinus, and 

 the Blaaubok, JT. Ir.ucopJiaeiis, of which the last specimen was 

 probably killed in 1799.i 



The genus Orijx (chiefly African, but also Arabian and Syrian) 



Fig. 1G3. — Beatri.\ Autelope. Oryxheatrix. x -- 



(From Kaixre 



also contains a number of species, which are fairly familiar through 

 the fact that several of them are always on view in the Zoo- 

 logical Sdciety's Gardens. The genus differs from Hijipot.r(((jas 

 in that the horns, present in both sexes, are placed behind the 

 orbits, and slant backwards in a line with the face. They are 

 annulated. The Leucoryx (0. leucoryx) is of a pale colour, but 



^ AV. L. Sclater, The Fauna of South Africa, Mammals, i. 1900. 



