1892.] OF THE GENUS CEPHALOLOPHUS. 421 



back, sometimes sharply defined throughout, sometimes broadening 

 out on the withers into an ill- defined band passing down the 

 shoulders towards the fore legs. Under surface, inner sides of 

 limbs, and back of hams rufous like the sides ; a black or blackish 

 longitudinal patch present in the sternal region. Tore limbs l)rowu, 

 from the shoulder downwards, hind limbs from just above the heel. 

 Tail black above throughout, the black covering nearly the whole 

 breadth of the tail ; white below terminallv. 



Horns placed about in the same straight line as the nasal profile : 



c?. About 70 mm. long, slender, tapering, not thickened or 

 roughened basally, the basal diameter going nearly five times in 

 the length. 



Skull with a remarkably short conical muzzle, the distance from 

 the anterior rim of the orbit to the gnathion less than the zygomatic 

 breadth. Anteorbital fossae of medium depth, their bottoms 19 mm. 

 distant from one another in a not fully mature female. Mesial 

 notch of palate about 4 or 5 mm. in advance of the lateral ones. 

 Bullae with a small supplementary inflation, something like that dis- 

 tinguishing C.jentinki from G. sylvkultor. 



Dimensions.— $ (not fully adult). Height at withers 3/0 ■ ear 

 47x44; hind foot 170. ' 



Skull— basal length (c.) 143; greatest breadth 81; orbit to 

 gnathion 77 ; nasals, lenj;th 55, greatest breadth 32 ; muzzle 46 ; 

 upper molar series (milk-teeth in place) 52. 



Hab. W. Africa from Sierra Leone to the Gold Coast. Replaced 

 in the Cameroons by subsp. castaneus. Sierra Leone {Whitfield 

 (Brit. Mus.)] ; Liberia [Bilttikofer and Stampfli (Levd. Mus.)! ; 

 Fantee [^M6e«« (Brit. Mus.)]. 



b. Cephalolophus dorsalis castaneus, subsp. n. 



Rather larger than var. typicus, and ears apparently rather larger. 

 Colour deep chestnut all over, the dorsal line deep black, the meta- 

 carpals and metatarsals brown. Superciliary stripe chestnut, 

 indistinct, far less bright than in var. typicus, and the general 

 colour of the head darker and duller. 



Skull with the muzzle of the ordinary slender elongate shape, the 

 distance from the anterior edge of the orbit to the gnathion ex- 

 ceeding the zygomatic breadth. Bullae with scarcely a trace of the 

 extra inflation behind the base of the stylohyal. 



Teeth decidedly larger than in the typical form, the combined 

 lengths of the three milk-premolars 30-3 as against 25-5 in a 

 similarly aged example of C. d. typicus. 



Dimensions of the type, an immature female. — Height at withers 

 485 ; ear 60; hind foot 205 ; tip of muzzle to eye 106. 



Skull— basal length (c.) 159; greatest breadth 83; orbit to 

 gnathion 90 ; nasals, length 70, breadth 35 ; upper molar series 

 (milk-teeth still in place) 60. 



Hab. Cameroons [Crossley (Brit. Mus.)]. 



This subspecies is based on the female specimen called by Gray ' 

 ' Hand-l. Eiun. p. 94 (1873). 



