528 
AFRICAN GAME ANIMALS 
subfamily is distributed throughout all of Ethiopia and is 
the most wide-spread group of antelopes in Africa. In past 
geologic time duikers ranged as far as Algeria where they 
are represented by two Pleistocene species. 
Key to the Genera 
Horns projecting straight back in line with or slightly below the 
dorsal profile of the head, less than half the length 
of the head, with broad base and triangular in 
shape; hair unicolored without annulations 
Cephalophus 
Horns projecting backward and upward slightly above dorsal pro¬ 
file of head, the length more than one-half the head, 
base narrow, the horns long and cylindrical in shape; 
hair annulated, the coat being vermiculated 
Sylvicapra 
Forest Duikers 
Cephalophus 
Cephalophus H. Smith, 1827, Griffith’s Anim. Kingd., V, p. 344; type C. sylvi- 
cultrix, the yellow-backed duiker. 
The forest duikers are characterized by their short, 
broad horns, which project backward from the skull slightly 
below the line of the dorsal profile of the head. The horns 
are much shorter than the head and often so diminutive 
as to be concealed by the long coronal tuft of hair. In 
distinction to the bush duikers the coloration is uniform 
or of solid colors, the hair not being annulated or vermic¬ 
ulated. The forest duikers occur only in heavy forest 
growth. Their centre of abundance is in the great Congo 
forest in much of which they are the only representatives 
of the Bovidce. In distribution they are spread over all the 
forested areas of Africa south of the Sahara Desert, with the 
exception of Abyssinia. 
