1905.] A NEW BUSH-BUCK. 181 



Tragelaphus haywoodi Thos.* 



Thos. Abstr. P. Z. S. No. 21, p. 9, Jane 13, 1905. 



A large heavily-built member of the group of small species 

 without a definite short-haired collar. Under surface darker 

 than upper. 



Fur comparatively coarse and long throughout, the hairs of the 

 back 35-40 mm. in length. General colour very dark, the nape 

 black ; the fore-quarters blackish brown (near " seal- brown "), passing 

 into dark reddish brown (" vandyke-brown ") on the middle back 

 and deeper rufous (dark " taAvny ") on the rump. Sides gradually 

 darkening downwards to the wholly black belly. Dorsal crest black 

 as far as the withers, then whitish mixed with some black hairs. 

 Thi-ee inconspicuous transverse whitish stripes on each side. No 

 longitudinal bands, but a few white spots on the sides of the rump. 

 Shoulders and proximal part of limbs deep black, succeeded by tawny 

 below. (Feet unfortunately lost in the type.) Top of muzzle nearly 

 black, with prominent interorbital whitish streaks nearly touching 

 each other in the middle line. Forehead and crown deep 

 ferruginous. Cheeks tawny ochraceous. Two white spots on 

 each side behind and below^ the eyes. Ears thinly haired, dull 

 tawny brown with blackish edges ; hairs of inner surface white. 

 Chin and interramia white and a large throat-spot duller white ; 

 between this and the white chest-band the throat was glossy 

 blackish, mixed with some tawny hairs. White axillary and 

 inguinal patches present. Tail dark tawny, white below. 



Skull very large and heavy for one of the smaller members of 

 the genus, much lai-ger than in T. scriptus or sylvatictos. Median 

 palatal notch rather farther forward than the lateral ones. 

 Palatal foi-amina comparatively long. 



Horns also very powerful, thick and strongly ridged, much 

 finer than those of any of the allied forms. 



Skull dimensions of type : — 



Greatest length 265 mm. ; basal length 247 ; greatest breadth 

 112; muzzle to orbit 134; muzzle to front of p' 77; length of 

 palatal foramina 36. Length of upper tooth-series 72, of three 

 upper premolars 31. 



Horns : length in straight line 400 ; on anterior ridge 470 ; 

 greatest basal diameter 59 ; basal circumference 171. 



Hah. ISTyeri, Kenya District, British East Africa. Altitude 

 6000 feet. 



Tyjie. Full-grown male. B.M. Xo. 5.5.16.3. Collected and 

 pi-esented by C. W. Hajwi^ood, Esq. 



Mr. Oscar ISTeumann t had sorted the smaller species of 

 Tragelaphus into two groups, characterised by the presence or 

 absence of the peculiar collar of short hairs which had been so 



* [The complete account of tlie new species described in this communication 

 appears here ; but since the name and preliminary diagnosis were published in the 

 ' Abstract,' the species is distinguished by the name being underlined. — Editoe.] 



t SB. Ges. nat. Fr. Berl. 1902, p. 98. 



