8 SUPPLEMENT 



whitish ; the throat ochery buff, with the hairs the same colour 

 throughout, but on the flanks the hairs are coloured like the neck 

 although with drab bases. The grizzling characteristic of the more 

 northern forms in C. g. sliirensis is so fine and faint that, at a short 

 distance, the coat seems to be uniformly coloured this and the pale 

 bright ochery colouring serving to distinguish this race from all the rest. 



NYASA BLUE DUIKER 



(Page 164) 



The Congo representative of this species has been described by 

 Dr. E. Lonnberg (Arkiv for Zoologi, vol. iv. No. 16, p. 12, 1908) as 

 CephalopJius nyasae congicus. It is distinguished from the typical race 

 by colour. In the latter the back is described as being of a darker 

 brown than in monticola, with a more distinct rufous suffusion, 

 while the rump is dark chocolate-brown. In the Congo race the back 

 is warm sepia, of nearly the same tint from neck to rump. Towards 

 the flanks this shades off into light smoky grey, with a slight buffy 

 tinge, due to the tips of the hairs being of that colour, while the under 

 surface is white. On the hams the hairs are sufficiently rufous at the 

 tips to communicate a tinge of this colour, although the rest of the 

 hairs are of the same grey as the flanks. The rufous tinge of the 

 hams is sharply defined from the dark sepia-brown of the rump, but 

 shades into that of the back. The legs are rufous, with a smoky 

 brown mark above the sides of the hoofs ; the face is nearly black, 

 with a dull rufous brown stripe ; and the tail is black above and 

 white beneath. 



The skull of both races of nyasae differs from that of monticola by 

 the great relative length and narrowness of the muzzle. 



THE RED DUIKER 



In the Annals and Magazine of Natural History for 1911 (ser. 8, 

 vol. viii. p. 278) Mr. R. C. Wroughton recognises four races of this 

 species, two of which are named for the first time. Of these the 

 Transvaal Ceplialophiis natalensis amaenus is distinguished by its richer 

 colouring, which is redder on the back and yellower on the flanks, 

 with the nape nearly black, whereas in the typical race the upper-parts 



