38 Game of Europe, W. & N. Asia & America 



that they must resemble Scrmmerring's gazelles at a little distance even 

 more nearly. ... I once saw some does and tawns erect or in some way 

 spread out the large patch ot white hair on their rumps. I had left my 

 horse and was trying to stalk, a tine buck, when these animals trotted past 

 me, all unconscious ot my proximity, although evidently uneasy at the 

 sight of the horse with a saddle on him. As they trotted slowly past me, 

 they all seemed to have the back humped up, whilst the white hair on 

 their hind-quarters seemed to be bristled up in such a way as to make this 

 part ot their bodies look much larger than it really was." 



This eversion ot the hairs of the white rump-patch is precisely similar 

 to what occurs among the sika deer, and suggests that, as in the latter, the 

 use ot the white patch is to serve as a guide for those in the rear of the 

 fleeing band to follow their leaders. 



The autumn is the proper season for pronghorn stalking. 



THE MEXICAN PRONGHORN 



[Anti/ociiprd nmcriciuui mexicaihi) 



A pronghorn from the Sierra en Media, Chihuahua, Mexico, was made 

 the type ot a distinct local race of the species by Dr. C. H. Merriam ^ in 

 1 90 1 under the above name; and it is probable that the same form 

 inhabits all that portion of Mexico lying within the distributional area 

 ot the species. 



According to its describer, the Mexican pronghorn differs from the 

 typical northern representative of the species by its paler colour, which in 

 the new winter coat is drab-brown, becoming cinnamon when the tips 

 ot the hairs are worn off, as well as by the absence or small size of the 

 mane, which, at most, is represented by a narrow line of dark hairs on the 



' Proc. Biol. Soc. ll'tis/iiigti/ii, vol. xiv. p. 31. 



