152 EINAE LONNaEEG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 



The question is now whether the other differences between typical G. harveyi 

 and the present specimen which have been referred to are constant or not. If they 

 are constant, they evidently characterize a local race which then ought to be termed 



C. Ji. kenice. 



The dimensions of the skull of my specimen, an adult female may be seen from 

 the following table of measurements: 



Total length of skull 171 mm. 



Condylobasal length 163 » 



Basieranial length 151 " 



Zygomatic width 77 » 



Distance from anterior brim of orbit to tip of premaxillary 88 » 



Length of nasals 58 » 



Interorbital width 42 » 



Length of upper molar series (48,5) 49 » 



Length of palate from mesial notch 88 » 



BulliE 11 X 19 » 



These dimensions differ somewhat from those recorded by True (1. c. p. 476) 

 for an adult male skull of G. harveyi from Taveta, but this difference may be due 

 to the larger size of the buck than the female. The mesial notch of the palate in 

 the present specimen extends to about the middle of m^ and the lateral notches to 

 the front of m^ 



The red Forest Duikers of different parts of Africa are evidently closely allied 

 and, at least partly, only geographical races of one and the same type substituting 

 each other. This is seen not only in the general colouration, but also in the shape 

 and dimensions of the skulls, although, as Thomas has proved, the western G. nigri- 

 frons and G. claudi have longer preorbital portions of their skulls. The present spe- 

 cimen approaches in some respects G. ignifer Thomas^ of Eldoma Ravine and may 

 be regarded as connecting that race with O. harveyi. G. ignifer differs from the 

 present race in having: dinner side of forearms, inguinal region, and inner side of 

 tighs whites,^ while there is nothing white there in C. h. kenice. The broad black 

 blaze of the latter appears also to be a good characteristic, while in G. ignifer the 

 forehead is » mixed rufous and black ». 



Red Forest Duikers are not uncommon in the thick forests at Nairobi where 

 I secured the specimen described above, and I saw and shot another specimen in a 

 forest two hours march north of Meru boma but lost that one, because it was im- 

 possible to follow the blood track in the darkness of the forest. In consequence of 

 its habits of living in thick woods with rich undergrowth it is seldom seen and dif- 

 ficult to obtain, in the dense cover where only twilight prewails. But if it moves 

 over a place where the daylight penetrates its chestnut red coat at once attracts 

 the eye. 



^ Thomas: Proc. Zool. Soc, London 1903, p. 226. 



