49 
Genus IV. NESOTRAGUS. 
Type. 
Nesotragus, Von Dib. Ofv. K. Vet.-Ak. Forh. iii, 1846, p. 221 (1847) . N. mMoscHatus. 
No auricular glands or accessory hoofs. 
Skull with very large anteorbital fosse, sharply defined above and below, 
almost as in Ourebia; anteorbital vacuity present on each side of the hinder 
end of the nasal bones; on the sides of the muzzle a long oval vacuity 
present on the suture between the premaxillary and maxillary bones; nasal 
opening oval, its sides bowed outwards as usual. 
Horns half or more the basal length of the skull, strongly slanted back 
almost to the continuation line of the facial profile; strongly, but finely, 
closely ridged for their basal half or three-fourths. 
Distribution. Fast Africa. 
To this genus there belong two closely allied species, which may be 
distinguished as follows :— 
a. Horns small and slender. Colour fawn-grey. ‘Tip of tail like back. 
49. NV. moschatus. 
6. Horns longer and thicker. Colour more rufous. Tail blackish above. 
50. WV. livingstonianus. 
VOL, II. H 
