152 EINAR LÖNNBERG, 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 
OC. h. kenie. 
The dimensions of the skull of my specimen, an adult female may be seen from 
the following table of measurements: 
Total length of skull . . « « « « så oa RT Snr erg 2 KRT 
Condylobasal length 5: 5 ss sd SfE 2 AP CI: SECKENNIGS AED 
Basrerantal length. sk. ss GSR a LANE 
ZYyg Omatie) Wibes syre] SS SSE lyst GSi ReeNe lö 
Distance from anterior brim of orbit to tip of premaxillary 88 » 
Lengthi oftnasalstf.r - NISSE SSE Resa 58 » 
In terorbital widbhad tr fe Eltel isl lekis fisar ES är fi 42 oo» 
Length ofiupper molar series. «gott sc dice NS: (48,5) 49 » 
Length of palate from mesial noteh =. . .... se 88 » 
I 8301 0 2 AN SRA EEE EE REA ÖS KL (CAS sr ss SE ALISON 
These dimensions differ somewhat from those recorded by TRUE (l. 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 OC. 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 foörearms, inguinal region, and inner side of 
tighs white»,' while there is nothing white there in C. h. kenie. 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 
[ 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. 
! THomMaAs: Proc. Zool. Soc., London 1903, p. 226. 
