152 EINAR LONNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
The question is now whether the other differences between typical C. 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. h. kenie. 
The dimensions of the skull of my specimen, an adult female may be seen from 
the following table of measurements: 
Totalionethy of alu cas ng enue Cl deeds ne oma 171 mm. 
Condylohasal length sige ene ve emicg =) eee) cen ee 163» 
Basicranial lenetny ewe) e) 4 is) ine) cet stad tere 151» 
ZY BOWBUC WIGEN 2 = Ye. ee) te =) eel Ce ain erolret eee ah? 
Distance from anterior brim of orbit to tip of premaxillary 88 
Wengthn ofmasalsi-cra.. cite k ance lie. foes ee etc einen 58 
Interoxrbital-widthiss seksi feelers Shel see ees = 42 » 
Length of upper molar series. ........+.+:5-. (48,5) 49 
Length of palate from mesial notch ........... 88 » 
[edi l|C e eeetttce 1 ck os WoO Stoo. eaeaeres x19 » 
These dimensions differ somewhat from those recorded by TRuE (Il. c. p. 476) 
for an adult male skull of C. 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 C. nigri- 
frons and C. claudi have longer preorbital portions of their skulls. The present spe- 
cimen approaches in some respects C. ignifer THomas’ of Eldoma Ravine and may 
be regarded as connecting that race with G. harveyi. C. ignifer differs from the 
present race in having: »inner side of forearms, inguinal region, and inner side of 
tighs white»,’ while there is nothing white there in C. h. kenia. The broad black 
blaze of the latter appears also to be a good characteristic, while in C. 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. 
' Tuomas: Proc. Zool. Soe., London 1903, p. 226. 
