314 



SABLE AND BEATRIX ANTELOBES 



horns of some length, present in both sexes, and of a longish 

 tail. They are all African in range. 



The type genus Hiiypotragus has its liorns placed above the 

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

 three species in tlie genus. Of tliese 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 Koan Antelope, H. equinus, and 

 the Blaaubok, H. leucopliaens, of whicli the last specimen was 

 probably killed in 1799.i 



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



Fig. 1G3. — Beatrix Autclope. Oryxheafrix. x iV- (Yrom Nature.) 



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 Society's Gardens. The genus differs from Hippotragus 

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

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

 annulated. The Leucoryx {0. leuconjx) is of a pale colour, but 



1 W. L. Sclatcr, The Fauna of Suuth Afriea, Mammah, i. 1900. 



