308 UNGULATES. 
These antelopes range in South Africa to some distance north of the Zambesi, and 
are found in parties of two or three on open ground, but are very local. Their 
colour harmonises closely with the ground, and their speed is very great. The flesh 
forms excellent venison. There are three other species of this section, among which 
is the Abyssinian steinbok (N. montanus). 
the ORIBI ( X V nat. size). 
Grysbok. 
The grysbok (N. melanotis), which is met with only to the north 
of the Limpopo, differs from the oribi by the absence of the tufts of 
hair on the knees. It is of about the same size as the steinbok, and of a chocolate- 
red colour. It is fairly numerous in hilly districts and extends far into the interior. 
Salt’s Antelope. 
Genus Neotragus. 
The Beni-Israel or Salt’s antelope {Neotragus saltianus ) of the Red Sea littoral 
and Abyssinia, which is only slightly larger than the royal antelope, is the best- 
known representative of a genus distinguished from the preceding by the presence 
of a tuft of hair on the crown of the head, and by the hairy muzzle, as well as by the 
horns of the males sloping backwards in the plane of the face. Moreover, the 
skull is distinguished by the great size of the aperture for the nose and the short¬ 
ness of the nasal bones, while the last molar tooth in the lower jaw, instead of being 
composed, as in other Ruminants, of three distinct lobes, has either only two such 
