KUNGL. SV. VET. AKABEMIENS HANDLINGAB. BAND 48. N:0 5. 151 



differences which are quite easily seen between this animal and Gephalophus harveyi 

 according to the descriptions found in the literature. My specimen may be described 

 as follows: 



Pur close, fine and glossy with the hairs of the back measuring 20 — 27 mm.* 

 General colour rich chestnut red, fading below to rufous. The black blaze on the 

 forehead extends from the muffle to the coronal tuft; on the nose it is about 17 mm., 

 bixt widens to twice that in the interocular region. The greater and central portion 

 of the tuft is mahagony, but the lateral parts are rufous. Eye-brows and sides of 

 the face rufous. The black central stripe is continued on the nape behind the ma- 

 hagony-coloured tuft and is then dissolved in the mixed black and chestnut red of 

 the upper neck which extends to above the shoulders. Chin dusky anteriorly, but 

 behind this part it is whitish, gradually blending into the buff throat and rufous 

 lower neck. Ears white inside and blackish outside, behind them a nearly naked 

 black area on either side of the black stripe of the nape. Fore legs glossy brownish 

 black. Hind legs rufous to chestnut red but from above the hocks and down to the 

 hoofs glossy brownish black. The tail has basally the colour of the back, on the 

 posterior half some whitish hair are mixed in, and the terminal well developed tuft 

 is proximally black, terminally white, with some rufous hairs mixed in. An ill-defined 

 dark brown streak extends over the chest mesially but disappears near the navel. 



The hoofs measure about 37—38 mm. in total length. 



The type locality of Gephalophus harveyi is Kilimanjaro, and the type-specimen 

 has been pictured in »Book of Antelopes* (Vol. 1, PI. XVII). The Kenia specimen 

 differs a great deal from this coloured plate quoted, especially by its mahagony, not 

 black, coronal tuft, and much darker legs and feet. When True communicated a 

 description^ of this Duiker from Kilimanjaro he stated that the tuft is »black», and 

 the forelegs are said to be » entirely dusky ». This description evidently agrees with 

 the type specimen in British Museum, because it is termed » excellent » by the authors 

 of the sBook of Antelopes*. In the year 1903 Thomas described C. ignifer from Eldoma 

 Ravine and stated then that C. harveyi had »no chestnut coronal tuft«. Lydekkee 

 emphasizes again in his book »The Game Animals of Africa**, as Thomas before, that 

 Harveys Duiker is distinguished from Gephalophus ignifer *by the black forehead and 

 the absence of chestnut in the head-tuft». The tail of the typical specimen of Gepha- 

 lophus harveyi as represented on the plate in »Book of Antelopes* is quite unhke this 

 organ in the present specimen. This may, however, be due to on error committed 

 by the artist, because the Natal Duiker on PI. XVI of the same work has been 

 pictured with a tail equally hairy along its whole length, although, as I have stated 

 on typical specimens from Natal in this museum, the tail of the Natal Duiker is thin 

 basally and carrying a terminal tuft, just as this organ is represented in G. nigrifrons, 

 and G. ogilhyi on PI. XVIII of the work quoted. 



1 It is quite probable that specimens living at a higher altitude on Kenia will prove to have somewhat 



longer hair. 



^ Proc. U. S. Nat. Mus., Washington 1892, Vol. XV, p. 476. 

 » London 1908, p. 153. 



