214 CAPT. W. C. HARRIS ON A NEW ANTELOPE. 
obtain a female specimen; but whilst riding down the buck, I had abundant opportu- 
nities of narrowly observing them within the distance of a few yards, and am, therefore, 
positive as to the correctness of the description here given, 
I have for the present designated the new Antelope ‘‘ Aigocerus niger ;” but of course 
it will rest with the Zoological Society either to confirm that name, or to bestow one 
more appropriate or more scientific ; and I shall be gratified by their doing so. 
I have the honour to be, sir, 
Your most obedient servant, 
W. C. Harris. 
Aigocerus niger. THe SaBLe ANTELOPE. 
Adult male four feet six inches high at the shoulder; nearly nine feet in extreme 
length. Horns thirty-seven inches over the curve, placed immediately above the eyes, 
rather higher than occurs in the Aigocerus Equina; flat, slender, sub-erect, and then 
strongly bent back scimitar wise ; at first gradually diverging, and then running parallel 
to each other; three-fourths annulated with about thirty strongly pronounced, incom- 
plete rings, more rigid on the edges, but chiefly broken on the outside of the horn ; the 
remaining one-fourth smooth, round, slender, and pointed. Head somewhat attenuated 
towards the muzzle, and compressed laterally. Carcase robust. Withers elevated. 
Neck broad and flat. Hoofs black, obtuse, and rather short. Hair close and smooth : 
general colour of the coat intense glossy black, with an occasional cast of deep chestnut. 
A dirty white streak commencing above each eye, continued by a pencil of long hairs 
covering the place.of the suborbital pouch, (of which cavity no trace is to be found in 
this Antelope,) and then running down the side of the nose to the muzzle, which is en- 
tirely white ; the same colour pervading one half of the cheek, the chin and the throat. 
Ears ten inches long, narrow, tapering and pointed ; white within, lively chestnut with- 
out, with black pencilled tips. A broad half crescent of deep chestnut at the base of each 
ear, behind. A small, entire black muzzle. A copious standing black mane, five and 
a half inches high, somewhat inclined forwards, and extending from between the ears 
to the middle of the back. Hair of the throat and neck longer than that of the body. 
Belly, buttocks, and inside of thighs, pure white. A longitudinal dusky white stripe 
behind each arm. Fore-legs jet black inside and out, with a tinge of chestnut on and 
below the knees. Hind-legs black, with a lively chestnut patch on and below the hocks. 
Tail black; long hair skirting the posterior edge, and terminating in a tuft which ex- 
tends below the hocks. Sheath tipped with black. 
Female smaller than the male, with smaller but similarly shaped horns. Colour, 
deep chestnut brown verging upon black. 
Very rare. Gregarious, in small families. Inhabits the great mountain range which 
threads the more eastern parts of Moselekatse’s territory. 
¥4e eer wy 
