542 
AFRICAN GAME ANIMALS 
tail, \Y% inches; hind foot, inches; ear, 3^ inches; 
basal length of skull, 6^ inches. A male specimen from 
the same locality has horns 4inches in length by 2 inches 
in spread at the tips. 
Alpine Bush Duiker 
Sylvicapra grimmia altivallis 
Sylvieapra grimmia altivallis Heller, 1912, Smith. Misc. Coll., vol. 60, No. 8, 
p. 10. 
Range. —Alpine meadows of the Aberdare Range and 
Mount Kenia. 
The summit of the Aberdare Range has supplied us 
with an alpine race of bush duikers. The soggy moor¬ 
land meadows lying at an elevation of 9,000 to 11,000 feet 
are inhabited by a shaggy-coated race of dark coloration 
to which the name altivallis was given by Heller in 1912. 
The type specimen was shot by Colonel Roosevelt on the 
summit of the range where it is crossed by the Naivasha- 
Nyeri road. The spot was within a stone’s throw of the 
safari camp at an elevation of approximately 10,500 feet. 
At this elevation the mountain range has a broad, flat¬ 
tened summit which extends in a north and south direction 
in a series of rolling downs for many miles. The downs 
are clothed everywhere by a thick carpet of alpine shrubs, 
chiefly various species of Alchemilla , interspersed with a 
few tussocks of rank grass and widely scattered thickets 
of heather bushes. The wet, spongy ground is broken up 
into hummocks and the Alchemilla shrubs grow so densely 
that travel over the moorland is very much like wading 
through soft snow-drifts. The duikers do not live in the 
open moorland but frequent the heather thickets where 
the ground is firmer. At night, however, they wander 
about over these boggy and shrubby moors upon the 
shrubs of which they feed. Surrounding this moorland 
on the slopes of the range is a dense forest of bamboo 
including a scattered growth of trees. On the lower slopes 
of the range the trees form a dense forest to the exclusion 
of the bamboo. This fringing forest is not inhabited by 
any of the Sylvicapra duikers, which are strictly plains or 
