DUIKERS AND SMALL ANTELOPES 565 
with short horns which rise vertically above the orbits and 
are without rings. False hoofs are lacking in this genus, but 
are present in the closely allied grysbok of South Africa. 
The skull shows considerable peculiarity of structure in the 
small size of the anteorbital fossa, which is a small, deep pit 
much less in size than in the other genera of the subfamily. 
The sinus between the nasal bones and the anteorbital pit is 
of very large size and quite equal in area to the pit. The 
snout is of moderate length and has very broad premaxillary 
bones bordering the nasal aperture. The sexes are alike in 
color and equal in size. The newly born young are in no 
way different in color from the adults, but their pelage is 
somewhat more woolly in texture. 
The steinbok reaches in British East Africa its most 
northern limit. From the highlands near the base of Kenia 
it ranges southward along the East Coast to the immediate 
vicinity of the Cape. It, however, does not occur west of 
the Victoria Nyanza or Tanganyika drainage. The genus 
consists of a single species, campestris , with two or more 
geographical races, the most northern of which reaches 
British East Africa. No fossil species are known. 
Masailand Steinbok 
Raphicerus campestris neumanni 
Native Names: Swahili, ishah; Masai, olbwansas; Kikuyu, thiya. 
Pediotragus neumanni Matschie, 1894; Sitz.-Ber. Nat. Freu. Bed., p. 122. 
Range.— From German East Africa northward through¬ 
out the highlands of the Rift Valley and coast drainage area 
to the northern slopes of Kenia and Elgon, in British East 
Africa; east as far as the coast lowlands and west to the 
shores of the Victoria Nyanza. 
The Masai steinbok was named by Doctor Matschie for 
Herr Oscar Neumann, who was one of the pioneer natural¬ 
ists of East Africa. He collected the type specimen at 
Mount Gurui in central German East Africa. A specimen 
collected south of the Victoria Nyanza by Speke and Grant 
forms the first record of the species in equatorial Africa. 
Jackson, Willoughby, and other sportsmen who visited Kili¬ 
manjaro in the early days found the steinbok in abundance 
