542 AFRICAN GAME ANIMALS 



tail, 43/^ inches; hind foot, ioj4 inches; ear, 2H inches; 

 basal length of skull, 6j4 inches. A male specimen from 

 the same locality has horns 4^ inches in length by 2 inches 

 in spread at the tips. 



Alpine Bush Duiker 



Sylvicapra grimmia altivallis 



Sylvicapra grimmia altivallis Heller, 191 2, 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 191 2. 

 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 Jlchemilla, 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 



