149 
Zee le OF RONTED 
DUIKER. 
CEPHALOPHUS NIGRIFRONS, Gray. 
[PLATE XVIII. Fre. 1.] 
Cephalophus nigrifrons, Gray, P. Z.S. 1871, p. 578, fig. 6 (skull), pl. xlvi. (animal) ; 
id. Cat. Rum. B. M. p. 27 (1872); id. Hand-l. Rum. B. M. p. 96 (1873) ; Peters, 
MB. Ak. Berl. 1876, p. 482 (Cameroons) ; Scl. List Anim. Z. S. (8) p. 147 (1883) ; 
Thos. P. Z. S. 1892, p. 419; Lyd. Horns and Hoofs, p. 210 (1893). 
Cephalophus aureus, Gray, Ann. Mag. N. H. (4) xii. p. 42 (1873) (jr.) ; id. Hand-l. 
Rum. B. M. p. 95 (1873). 
Vernacutar Name :—WNogolo in the Cameroons (Buchholz). 
Size medium. Colour of body rich chestnut, scarcely or not at all paler 
below. Centre of face and crest deep black, contrasting markedly with the 
rufous superciliary streaks. Nape browner. Feet and tip of tail blackish, a 
few white hairs in the terminal tuft of the latter. Hoofs apparently longer 
in proportion than usual; lower edge of the posterior outer hoof 1°57 inch in 
length. 
Horns, judging only from the cores, decidedly short, and but little expanded 
at their base; the cores in an adult male about 1‘) inch long. Their set 
parallel to, and a little below, the level of the nasal profile. 
Skull with the frontal region decidedly convex. Muzzle rather narrow and 
elongated. Anteorbital fossee of medium depth. Median posterior palatine 
notch some distance (4 inch in type) in front of the level of the lateral 
notches. 
Dimensions :— g. Approximate height at withers 19 inches, ear 2:3, hind 
foot 9°2. 
Skull: basal length 6°3 inches, greatest breadth 3:1, muzzle to orbit 3°6. 
