DUIKERS . 167 



YELLOW-BACKED DUIKER (Cephalophus sylvicultor). 



This species is distinguished from most of the other members of the 

 genus by its large size, coupled with its blackish coloration, and the 

 presence of a yellowish crest on the back and a similarly coloured 

 longitudinal patch on the rump. Height at shoulder, 34 inches. It is 

 represented in N. Rhodesia by C. coxi. 



Distribution. The West Coast of Africa from Liberia to Angola. 



Length on Circum- T,. ~,. , ,. 



front. ference. Tip to Tip. Locality. Owner. 



7 3^ ... Sierra Leone . . Capt. C. E. Palmer. 



-6g 3 3 N.E. Rhodesia . . Dr. Albert von Stephani. 



6| ... 4^ Fanti .... British Museum. 



6| 3f 3 Luapulu River, N.E. G. M. E. Leyer. 



Rhodesia 

 6^ 3^ ... Ashanti . . . C. Beddington. 



5i 3 4^ Gaboon . ... Sir Edmund G. Loder, Bart. 



-5i 3 T % 34 Do. . . . Major W. Anstruther Gray. 



5 3| 4^ Angola . . . Hon. Walter Rothschild. 



5 3| 4J Do. . . . G. W. Penrice. 



4! 3 ... Johnston's Falls . . J. Yule. 



Some of the above specimens are C. coxi. 



HARVEY'S DUIKER (Csphalophus harveyi). 



This East African species is in size and its dark chestnut -red 

 colour very similar to the Natal duiker, but with a dark brown or 

 blackish blaze on the face, and the horns thick at the base and 

 rough. 



Distribution. East Africa. 



3 3^ ... Man Forest, East Africa . Hon. Walter Rothschild. 



3| 2| 2^ Do. . . F. J. Jackson. 



3^ 2| 2f East Africa . . . Rear- Admiral R. A. J. Montgomerie. 



2 3/5 i Do E. N. Buxton. 



2 2 ... Kilimanjaro . . . F. W. Belt. 



- Owner's measurements. 

 1 Cephalophus isaaci. 



