Appendix 277 



gazelle, and the five lower ones four bucks and a doe 

 of Kennion's gazelle. The female of the latter species, 

 it will be observed, carries horns which are very nearly 

 smaller and more slender replicas of those of the bucks, 

 but the female of the other species is hornless. This 

 is one point of difference. Another is to be found in 

 the more or less lyrate and terminally incurved horns 

 of the bucks of the Seistan gazelle, and the comparative 

 straightness and little or no incurving of those of Ken- 

 nion's gazelle. Age or individual variations, of course, 

 occur, as is exemplified by the middle specimen of the 

 former species as compared with the two lateral ones; 

 but in none is there any difficulty in deciding the species 

 of any fully adult individual. There is also a difference 

 in the face-markings, which had escaped my notice until 

 I received the present photograph. In the Seistan 

 gazelle, for instance, the central dark face - streak is 

 broad, and stops short of the muzzle, which is wholly 

 white ; whereas in the other species it is narrower, more 

 sharply defined, and extends right down to the nostril, 

 although tending more especially in the female to 

 become lighter at the muzzle than elsewhere. 



[With reference to Mr Lydekker's letters above, I can 

 lay no claim to have " discovered " the Seistan gazelle in 

 any but a zoological sense. Though I was the first to 

 bring this gazelle to the notice of the zoological authori- 

 ties of the British Museum, it was certainly known to 

 others before this, notably to Major J. Watson and Cap- 

 tain T. Keyes, who had some in their garden in the 

 Turbat Consulate. The existence of the other gazelle 

 (called by Mr Lydekker fuscifrons or Kennion's) in Persia 

 was, so far as I am aware, unknown to anybody. 

 AUTHOR] 



