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^<4 inches; spread, i^ inches. Skull: greatest 

 length, 4iV inches; length of nasal chamber, i^ 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- 



