274 Appendix 



the small extent of the white on the rump, which in the 

 Yarkand species (Plate v. of Blanford's ' Mammals of the 

 Second Yarkand Mission ') is very large and ascends high 

 up on each side of the root of the tail. This gazelle greatly 

 exceeds subgutturosa in size, as well as in the much larger 

 ears, less divergent horns, and the smaller white rump- 

 patch, but resembles that species in that the male has a 

 " goitre." Taking the mounted specimen in the museum 

 as the type, it may be known as the Seistan gazelle, G-. 

 seistanica. 



The foregoing species collectively indicate a transition 

 from the edmi and bennetti type, on the one hand, to 

 that of the goitred gazelle on the other, as is indicated in 

 the case of some of the Asiatic species by the following 

 table : 



(a) Females horned ; no goitre ; tips of horns not dis- 

 tinctly inturned ; rump-patch small. 



(1) Indian gazelle Gr. bennetti. 



Height about 25 or 26 inches ; ears moderate ; no in- 

 turning of horn-tips. 



(2) Kennion's gazelle G. fuscifrons. 



Larger, height probably about 28 inches ; ears longer ; 

 horn-tips slightly inturned. 



(of) Females (except marica) hornless ; a goitre ; tips of 

 horns distinctly inturned. 



(b) Eump-patch small ; face-markings distinct. 



(3) Seistan gazelle Gr. seistanica. 



Very large; height about 29 inches; ears very long; 

 horns sublyrate. 



(b') Eump-patch large. 



(c) Face-markings ; horns sublyrate ; colour, dark. 



(4) Saikik, or Yarkand gazelle Gr. yarcandensis. 

 About the size of last, but ears apparently shorter. 



(c') Face -markings nearly obsolete; horns divergent; 

 colour in winter, very pale. 



