152 ANTELOPES 



gradually darkens to the knees and hocks, which, with the lower part 

 of the legs, are blackish brown. The tail is short, black grizzled with 

 rufous and white above, and dirty white below and at the tip. The 

 presence of a white chin-patch and absence of a dark line on the 

 under-parts distinguish this species from dandi. 



WEYNS'S DUIKER 



{Cephalopluis wcynsl) 



This species, which inhabits the neighbourhood of Stanley Falls 

 on the Congo, was described, with a coloured plate, by Mr. O. Thomas 

 in the Ajinalcs of the Congo Museum for 1901, zoological series, vol. ii. 

 part i. p. 15. It is nearly allied to CepJialopJms nigrifrons, with which 

 it agrees in having no dark dorsal stripe, but differs from that species 

 by the hairs of the nape of the neck being directed forwards instead 

 of backwards. The general colour of the body is brown in front and 

 bright red behind, the tint of the rump corresponding with that of 

 nigrifj'ons. The upper surface of the muzzle is chocolate-brown, 

 passing gradually into a mixture of red and black on the forehead, 

 and then into red-maroon in the neighbourhood of the tall crest ; the 

 cheeks are pale brown above, but whitish lower down. The short and 

 rounded ears are brown with white margins. 



JOHNSTON'S DUIKER 



( CepJialopJms Johns font) 



The duiker inhabiting the Toro district, to the east of Mount 

 Ruwenzori, is closely allied to the preceding, from which it differs by 

 its thicker and more woolly coat and much darker colour. It was 

 named by Mr. Thomas in the Zoological Society's Proceedings for 

 1901, vol. ii. p. 89. 



ISAAC'S DUIKER 



{Cephalophus ignifer) 



This duiker, which was first obtained by Mr. F. W. Isaac in the 

 Eldoma Ravine, British East Africa, at an elevation of about 7000 

 feet, and described by Mr. O. Thomas in the Zoological Society's 



