— 173 — 



vince orientale » which may mean the Stanleyville district, and 

 also from Uele. How far soiitii its distribution is extended does 

 not appear to be full_y stated. As the type locality was Gaboon, 

 and it also later bas been found in Cameroon, its distribution, 

 appears to be rather wide, but as far as I know, it bas not y et been 

 observed to the south of the Congo river or west of Lualaba river. 



Cephalophus castaneus Thomas, subsp. orientalis Schwarz. 



The collections of the Congo Muséum contain a considérable 

 luimber of spécimens from varions parts of Belgian Congo. Most 

 of thèse are, however, immature, and it is therefore difficult to 

 solve the racial questions. One of thèse questions concerns the 

 relation of Cephalophus dorsalis orientalis Schwarz to the C. cas- 

 taneus proper. 



Schwarz' tvpe was from Uele, and it may thus be presumed 

 that spécimens from Bambili in Uele just represent orientalis, 

 the more so as Schwarz, himself records a paratype from there. 

 The Muséum possesses quite a séries from this locality (de 

 Calonne). Among thèse there are also two adult bucks (2301 and 

 2308). The basai length of their skuUs is the same viz. 167 mm. 

 This is somewhat less than what the skull of the tvpical orientalis 

 measures, viz. 178 mm. 



On the other hand there are adult maie skulls from Barumbu 

 in Aruwimi (2593 and 2597), which hâve a basai length of 176.5 

 and 174 mm., and another adult niale skull from Topoké near 

 Stanleyville (222) bas a basai length of 166 mm. A young adult 

 female from Dunga bas the basai length of the skull 167 mm. and a 

 female with only m" developed, from « province orientale » (pre- 

 sumablv about Stanleyville), has the same measurement 169.5 nim. 

 Thèse measurements tend to support what I bave expressed 

 before ('), viz. that the Cephalophus castaneus from Uele are not 

 superior in size to those from several other parts of Congo. This 



(■) A'. Vel, Akuil. fliindl., Slockholm, 1917, Bd 58, p. 94. 



