1892.] OF THE GENUS CEPHALOLOPHUS. 423 



rich rufous. Chin and throat white, rest of under surface yellowish 

 grey. Back with a broad black dorsal band commencing behind 

 the withers, broadening posteriorly, and involving the whole of the 

 hams and backs of the hind legs down to the heels, and also the 

 tail, with the exception of the extreme tip below, where the hairs are 

 white-tipped. On the sides of the thighs, edging the black, the 

 general body-colour becomes rich rufous. 



Horns short, directed backwards, lying below the level of the 

 nasal profile. 



Dimensions. — $ . " Total length to tip of tail 11 70 mm. " ; '* tail 

 210;" "ear 70." 



Skull (taken from figure, and therefore only approximate) : — ■ 

 Basal length 164; anterior edge of orbit to gnathion (more or less 

 decreased by perspective) 98 ; nasals, length 74 ; length of molar 

 series (milk-teeth still in place) 60. " Length of skull" {fide Peters) 

 180 (the greatest length of the drawing is 184 mm.). 



Hab. Gaboon [BuchJioh (Berl. Mus.).]. 



The description is compiled from Dr.Peters's description and figure 

 of this striking species, of which I have never seen a specimen. 



10. Cephalolophus rufilatus, Gray, Ann. Mag. N. H. (1) 

 xviii. p. 166(1846). 



Size small ; form slender. General colour partly bright yellowish 

 rufous, and partly a peculiar bluish grey, the former colour covering 

 the sides of tlie face, the whole of the neck, the shoulders, flanks, 

 rump, and belly, while the latter prevails on the middle line of the 

 nose, on the forehead, occiput, back of ears, centre of back from 

 withers to rump, and all four limbs, from the elbows and middles 

 of lower legs downwards. Crest long, blackish. Tail rufous above 

 basally, black terminally. 



Horns placed in the same line as the nasal profile : — 



cf . Short, conical, pointed (but no adult wild specimen available 

 for description). 



$ . Rudimentary, mere low rounded knobs, hardly projecting 

 above the skin of the head. 



Skull with a long and slender muzzle. Anteorbital fossae re- 

 markably deep, more so than in any other species, their bottoms 

 within from 5 to 10 millim. of each other. Mesial palatal notch 

 some distance (5 to 7 mm.) anterior to the lateral ones. 



Dimensions. — c? • Height at withers 360 ; ear 58 ; hind foot 

 179. 



Skull ($) — basal length 132; greatest breadth 66; orbit to 

 gnathion 73 ; nasals, length 53, breadth 25 ; muzzle 45 ; upper 

 molar series 49. 



Hab. W. Africa. Gambia [Whitfield (Brit. Mus.)]. A young 

 skull from the Niger [Baikie (Brit. Mus.)j has also, and probably 

 correctly, been referred to this species. 



It is difficult to say to which of the other species this peculiar 

 little animal is most allied, especially as the absence of wild-killed 

 male specimens renders me unable to describe the fully developed 



