300 THE SHEEP AND ITS COUSINS 



and under-parts, and a short and broad brown tail. 

 In the male of the Yana bighorn the white rump- 

 patch is larger, although it does not include the 

 short and bushy tail, or extend on the buttocks 

 above its line of origin. The face is white, with 

 the exception of a wood-brown transverse band 

 midway between the nostrils and the eyes, which 

 expands to include each cheek ; and the whole 

 nape is white mingled with grey. A faint dark line 

 runs down the back, but becomes more distinct as 

 it approaches the tail, which is blackish brown ; and 

 there is also a larger proportion of white on the 

 legs and under-parts. An important difference from 

 the Kamchatkan bighorn is to be found in the 

 larger ears, which are very thickly haired. 



The head of a ewe was wholly greyish white, 

 passing into pure white on the forehead and muzzle. 



It may be added that Professor P. Matschie,' 

 who regards Clifton's bighorn as typically from the 

 Byrranga Mountains, south of the Taimyr Penin- 

 sula, between the mouths of the Yenisei and the 

 Lena, has given the name Ovis alleni to the wild 

 sheep of the Taigonose Peninsula — as represented 

 by a head figured by Dr. Allen — on the presumption 

 that it may prove distinct from borealis. 



• In Paul Niedieck's Kreuzfahrten im Beringmeer, Berlin, 1907, 

 p. 236 ; English translation, London, 1909, p. 226. 



