195 
Genus V. TAUROTRAGUS. 
Type. 
Oreas, Desm. Mamm. ii. p. 471 (1822) (mec Hiibner, 1806) . . . . . TT. onyx. 
Taurotragus, Wagn. Schr. Saug., Suppl. v. p. 439 (1855) . . . . . . TT. onyx. 
Doraiocenoss uydesieldwixxviltapealdg0 (1891). 2... . . =| .« « « « ‘TT. onyx. 
Very large, heavily-built, bovine Antelopes, differing from the rest of the 
Tragelaphine in the presence of horns in both sexes. Horns longer than 
the face, arising well behind the orbits and directed backwards in the plane 
of the nasal bones, massive (in the male) and furnished with a strong but 
close spiral twist in the basal half; the anterior crest large, making a 
complete circuit of the horn and reappearing on its anterior surface near the 
middle when the horn is unworn, and always at some distance from the tip. 
Hair on the forehead longer than on the rest of the head, and forming, in 
old males, a thick and stiff mat; hair on the nape forming a short mane 
reversed in the direction of the growth, the parting close to the withers. 
Throat furnished with a flap of loose skin, or dewlap, which bears a beard- 
like tuft of hairs. 
Tail reaching to the hocks, covered with short hair, but tufted at the tip. 
Female. Like the male, but slighter in build; without the thick frontal 
mat of hair; horns longer, thinner, less strongly crested, and usually much 
less twisted. Mammee 4. 
Range of the Genus. Africa south of the Sahara, from Senegambia and the 
White Nile in the north to Cape Colony in the south. 
The two species of this genus may be shortly diagnosed as follows :-— 
A. Ears narrow and pointed; neck brown like the body. 182. T. oryz. 
B. Ears large and expanded ; neck black, with a white posterior margin. 
133. 7. derbranus. 
