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darker bodv coloiir with black sprinkling on the fore quarters and 

 .darker legs. As it is a young iminature maie its skull characters 

 cannot be compared with the others, and it miist thus be left an 

 open question, if it is a représentative of another local race, or not. 

 This Duiker was originally described from Uele, but proves to 

 be distributed from there through the aquatorial forest in the most 

 eastern parts of which it possibly becomes darker and somewhat 

 smaller. 



Cephalophus nigrifrons lusumbi n. subsp. 



Among the collections, which the Muséum possesses from 

 Katanga, there are three Duikers which appear to be unknown up 

 to the présent date. They are two maies and one female (coll., 

 DE Baillet-Latour). The older maie and the female are from 

 Kinda in the Lulua district, western Katanga, and apparentlv the 

 other maie is from the same locality. About the old maie is indi- 

 cated on the label, that its native name is « Lusumbi », and for 

 the female the corresponding name is « Lusungu ». 



It was soon apparent, that, although thèse Duikers plainly 

 belong to the nigrîfro)is-gvowp, they differ from the other races of 

 the same group which live further north. It was more difiicult to 

 décide, whether the three spécimens really were représentatives 

 of the same race, so différent are their skulls inter se, as the 

 accompanying table of measurements shows and as will be discus- 

 sed below. I decided, however, to consider them as belonging to 

 the same race and take then the oldest maie as the type. 



It has a short black nose spot which does not extend much 

 further back than to a level with the anterior end of the row of 

 face-glands, above this the whole interorbital space is « mahogany » 

 (335.1) but shading towards the superciliary tracts to rich « fawn » 

 (308.4). Behind this again the middle part of the crown is black, 

 which continues not only to the tuft, but extends as a band along 

 the anterior half of the upper neck and dissolves then in a dark 

 sprinkling, which can be seen to above the shoulders in the almost 

 « Indian Chesnut red » (333 .2). This rich colour fades towards the 



