IO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 



Skull: Condylo-basal length, 146; basilar length, 136; greatest 

 length, 156; zygomatic breadth, 67; nasals, 56x30; interorbital 

 width, 37 ; vertical diameter of orbit, 27 ; length of upper tooth-row, 

 51 ; first premolar to premaxillae tip, 46; length of bullae, 22. 



The series of specimens from the Lado Enclave show very little 

 variation from the characters given for the type, all being decidedly 

 light-grayish in color and small in size. Specimens in the British 

 Museum from the Bahr-el-Ghazal region, further north, show the 

 same light coloration and small size. This species, grimmi, with its 

 various racial forms, has the widest geographical and altitudinal 

 range of any African antelope. It is found practically everywhere 

 from Abyssinia southward to the Cape region, and from the east 

 coast westward to the Gambian region. Its altitudinal range extends 

 from sea-level to twelve thousand feet on the sequatorial mountain 

 ranges. The color changes over this wide area are remarkably slight, 

 with the single exception of the rufous race, coronatus; of the west 

 coast. The southern as well as the alpine races show the darkest 

 coat and the greatest amount of black annulation in the hair accom- 

 panied by the largest size. 



In the Labo Enclave this duiker was frequently flushed from 

 coverts of tall dry grass which are its chief haunts here in the 

 absence of thickets of bushes. Its partiality for thick cover causes 

 it to seek the protection of the densest patches of tall grass, but its 

 food consists exclusively of the foliage and fruit of shrubs. One 

 of the commonest substances found in its stomach was the hard 

 yellow berry of the thorny nightshade, Solatium campylacanthum. 

 Only solitary individuals were seen, and these when flushed, seldom 

 stopped going until safely within the protection of some neighboring 

 cover. 



SYLVICAPRA GRIMMI ALTIVALLIS, new subspecies 



Alpine Bush Duiker 



Type from summit of Aberdare Range near Kinanagop Peak, 

 altitude 10,500 ft. ; adult female, (premolars worn) ; No. 164746, 

 U. S. Nat. Mus. ; shot by Theodore Roosevelt, August 10, 1909 ; 

 original (Heller) number, 295. 



Characters. — Similar to hindei, but larger and dorsal color darker, 

 much more vermicnlated with black and less reddish ; pelage much 

 heavier, color of dorsal hair basally broccoli-brown, in hindei it is 

 much lighter; hoofs larger; hair of under parts basally ecru-drab, 

 not white to the roots as in hindei. 



