158 ANTELOPES 



and the hind-legs as far down as the hocks, as well as the tail, with 

 the exception of the under surface of the tip, where the hairs have 

 white points. In height the species is approximately the same as 

 dorsalis. The general colour is yellowish brown, becoming more 

 distinctly rufous on the loins ; but the forehead and crest are rich 

 rufous, the chin and throat white, the under-parts elsewhere yellowish 

 grey ; while on the sides of the thighs next the black the body-colour 

 becomes rich rufous. 



THE RED-FLANKED DUIKER 



( CepJialopJius rufilatus) 

 (PLATE vi, fig. 5) 



This species, the last representative of the red group, has much 

 the appearance that we should expect to find in a hybrid between 

 coronatus and inaxwelli, although the number of specimens that have 

 been brought to Europe is in favour of its being a distinct species, 

 representing a dwarf type of the dorsalis group with the black replaced 

 by grey, and the chestnut lighter than usual. 



Typically from the Gambia, but occurring also in the Gaboon, 

 Nigeria, and Ashanti, this tiny duiker stands only about 14 inches 

 at the withers, and has minute horns. In general colour it is in 

 part bright yellowish rufous and part bluish grey ; the former tint 

 obtaining on the sides of the face, neck, shoulders, flanks, rump, 

 and under-parts, while the latter prevails on the middle line of the 

 nose, the forehead, the back of the head and ears, the middle line of 

 the back from the withers to the rump, and the greater portion of 

 the limbs. 



To a duiker from the upper Welle Valley, Congo territory, 

 Messrs. Thomas and Wroughton, in the Annals and Magazine of 

 Natural History for 1907 (ser. 7, vol. xix. p. 385), gave the name 

 CepJialophus rufilatus rubidior, on account of its being much redder than 

 the typical Gambian race of the species. The general colour of the 

 rather long and harsh fur is dark reddish brown, approaching " burnt- 

 sienna," with a narrow patch on the middle line of the back much 

 darker and showing a bluish tinge. The under-parts are a paler shade 

 of the same colour. The colour-pattern is as in the typical race, 

 although the dark dorsal area is rather less defined, and the ochery buff 

 ground-colour replaced by burnt-sienna, while the smoky grey of the 



