632 
AFRICAN GAME ANIMALS 
larger than the coast and desert races, and only slightly 
smaller than the Naivasha dikdik. No flesh measurements 
are available. The longest horns in a series of three adults 
are: length, 2^ inches; spread, inches. Skull: greatest 
length, 4A inches; length of nasal chamber, 1 inches. 
Naivasha Kirk Dikdik 
Rhynchotragus kirki cavendishi 
Native Name: Masai, engomani. 
Madoqua cavendishi Thomas, 1898, Proc. Zool. Soc., p. 278. 
Range. —Distributed throughout the Rift Valley of Brit¬ 
ish East Africa from Lake Baringo southward to the Ger¬ 
man border; spreading westward in the southern part of its 
range across the Loita Plains to the Amala River and the 
southeastern drainage area of the Victoria Nyanza. 
The specimen collected by Mr. H. S. H. Cavendish, 
which has formed the basis for Thomas’s description and 
name of the present race, is of uncertain locality. The 
type was one of a number of specimens bearing no locality, 
which were collected in British East Africa by Cavendish 
and presented to the British Museum. The describer errone¬ 
ously attributed the dikdik to Lake Rudolf, which was one 
of the districts visited by Cavendish. The type specimen, 
however, agrees minutely with the large race found south of 
Baringo, a district also visited by the collector and without 
doubt the source of the type. The only race of kirki which 
may possibly reach the Rudolf basin is the small, pale- 
colored race, minor , with which it could not possibly be con¬ 
founded. In 1909 Doctor J. A. Allen, of the American 
Museum of Natural History of New York, described as 
Madoqua langi specimens collected by Herbert Lang near 
Lake Elmentaita. These specimens, however, are not dis¬ 
tinguishable from cavendishi , which came without doubt 
from a neighboring locality. 
This race attains the maximum of size of the kirki group 
and has also distinctly larger ears than other races. In 
color it resembles its nearest geographical ally, hindei , but 
is on an average somewhat less rufous, lacking the rufous 
suffusion of the throat, and in its general grayness of color- 
