— i63 — 

 Cephalophus sylvicultrix Afzelius. 



The Congo Muséum has skulls of this Antelope from so various 

 localities as from Ubanghi and Uele [f. i. north of Bambili, 

 (de Calonne) ] from the ajquatorial forest, as well its eastern parts 

 (collected by Christy) as its western f. i. Banalia and Tschopo, 

 further from Oshwe in the district of Lake Leopold II (D' Maes), 

 and finallv from Katanga (Leboutte) and N. E. Rhodesia. 



Although not completelv alike ail thèse skulls are very similar, 

 and it is not easv to detect any différence which might be of sub- 

 specifie value, if there shoiild be any. 



The size of the skulls varies between verv narrow limits, viz. 

 259.5 for Christy's spécimen, and 244.5 mm- for the Bambili spé- 

 cimen, thus the largest and the smallest are found in the north. 



The smallest teeth are found in the spécimen from Katanga 

 (cf ad.), which has a length of the upper molar séries amounting 

 to 78.5 mm. But in the spécimen from N. E. Rhodesia it is 83.5 

 and in Christy's spécimen (ad.) 83 mm., while the spécimens from 

 Banalia (ad.) and from Tschopo (voung ad.) hâve the same dimen- 

 sion between 87 and 88 mm. The spécimen from Bambili (cf ad.) 

 appears to be similar (first premolars missing), and also the Oshwe 

 spécimen (ad.) with 86 mm. 



The teeth of the more north eastern spécimens are, at least 

 partly, larger, so that they give the following measurements 89.3 

 (Ç ad.), 94.5 (d* ad.) and 91 mm. (ad. not sexed, but with compa- 

 ratively small horns). Although the différences between the smal- 

 lest and the largest is pretty great, there are plenty of intergrading 

 sizes. 



There 9re, of course, some other variations with regard to 

 cranial dimensions, as f. i. length of nasals, but thèse appear to be 

 without connection with geographical distribution, and it is there- 

 fore impossible for me to support f. i. Jentink's view about 

 C. Coxi as a différent race from Rhodesia. 



The skins are not so numerous, but those thaï I hâve seen do 

 not appear to indicate any racial distinction. Whether the Congo 

 spécimens fully agrée with such from the type locality, or not, 

 I hâve not had the opportunity of ascertaining. 



