﻿E. LÖNNBERG, TWO APPARENTLY NEW ANTELOPES. / 



If the colour of Rh. riasoguttatus is compared with that 

 of Rh. guentheri the differences appear to be rather great. 

 In addition to the white-spotted nose of the new species there 

 are several other distinguishing featnres. Among those it is 

 perhaps most apparent that the new species is more grej^ 

 and less yellow than Rh. gueyitheri. The crest of the latter 

 is said to be »mnch mixed with black» but in the former 

 it is black. 



The above described typespecimen of RhyncJiotragus riaso- 

 guttatus has been shot by Mr. R. Tjäder the 20th of Aug. 

 1906 20 kilometres S W. of Lake Baringo, Britisli East Africa. 



Cobus defassa tjäder! n. subsp. 



The typical Cobus defassa (Ruppell) is a well known 

 animal distinguished from its nearest allies (those which are 

 like the »Defassa» provided with a white rump-patch) by its 

 rather long and somewhat pointed ears a white patch on the 

 iipper throat, the red colour of the forehead and the general 

 rufous brown colouration of the body. 



The specimen presented by Mr. Tjäder and named after 

 him undoubtedly belongs to the defassa-grouip, but it differs 

 so much from the typical form that I believe it must at 

 least provisionally be regarded as representing a new geo- 

 graphic subspecies. This difference makes itself known espe- 

 cially in the much darker colouration of most parts and 

 greater extension of dark areas, which latter may be seen on 

 the accompanying figure of the skin. 



The black of the face extends from above the white ring 

 round the muzzle upwards to above the middle of the white 

 eye stripe, and on the sides to the corner of the mouth. It 

 has thus a considerably greater extension than in the true 

 defassa. The white eye -stripe is clear and well defined but 

 does not extend further backwards than över the anterior 

 third of the eye. Above the black face the forehead is bright 

 rufous somewhat mixed with black. The sides of the face 

 behind the lateral extension of tlie black has the same colour 

 as the forehead except that the region from below the eye 

 to the root of the ear is paler, buffish brown shading into 

 whitish at the ear. The sides, and the under parts of the 

 lower jaw behind the clear white chin are dark brown so- 



