382 APPENDIX. 



29. Gazella Alhifro7is. The White-faced Antelope. Bles- 

 bok of the Cape Colonists. Nunni of the Bechuana. 



Adult male three feet eight inches high at the shoulder, and 

 six feet three inches in extreme length. Head long and narrow. 

 Muzzle broad. Horns from twelve to fifteen inches in length, 

 white, very robust at the base ; divergent, with ten or twelve 

 semi-annuli on the anterior side. A patch of chocolate-coloured 

 hair at the base of the horns, divided by a narrow white streak, 

 which suddenly widens between the eyes to the whole breadth 

 of the face, down which it passes to the nose. Ears rather long 

 and white. Sides of the head and neck deep purple chocolate. 

 The back and shoulders hoary bluish-white, as if glazed. Flanks 

 and loins brown. Belly white. Legs brown outside, white 

 within. Croup and chest rufous. Tail reaching to the hocks ; 

 seventeen inches long, with much posteriorly directed brown and 

 white hair. Linear nostrils. Very indistinct muzzle. Small 

 circular lachrymary perforation. 



Female precisely similar, but slighter, less vividly coloured, and 

 with more slender horns. Mammee two. 



Very gregarious. Inhabits the plains south of the Vaal River 

 in immense herds. 



30, Gazella Pygarga. The Pied Antelope. Bonte-bok of the 

 Cape Colonists. 



Rather larger than the preceding. Head long, narrow, and 

 shapeless, with a very broad muzzle. Horns fifteen inches long ; 

 black, divergent, erect, very robust at base, with ten or twelve 

 incomplete annuli, broken in the middle and striated between. 

 Forehead and face white, as in the Bles-bok. Ears long and 

 reddish. Sides of the head, neck, and flanks, deep purple 

 brown. Back bluish lilac, as if glazed. Legs perfectly white 

 from the knees and hocks downwards. Belly and inside of thighs 

 white, and a large white patch on the croup. Tail reaching to 

 the hocks ; white above, with a tuft of posteriorly directed black 

 hairs. Small detached lachrymary perforation. Linear nostrils. 

 Very indistinct muzzle. 



Female precisely similar, but on a slighter scale, with more 

 slender horns. Mammse two. 



Gregarious. Still found in Zoetendal's V'ley, near Cape 

 L'Agulhas. Common in the interior. 



