Dr. N. Severtzoff on the Mammals of Turkestan. 223 



liglit-coloured; the white spots on the side of the shoulders are 

 like those of 0. Karelini ; also the blackish brown nape and 

 rather ligliter spine are similar in both these species. The 

 white spots about the eyes are wider in 0. Polii^ and extend 

 to the front of the lower eyelids ; the mane is snowy white, 

 without any mixture of brown hair in it ; the belly is white, 

 which colour gradually shades off into a greyish brown on the 

 flanks, without a black line separating the two colours from 

 each other ; the white colour of the hinder portion of the body 

 extends over the hind legs and the tail, on Avhich latter 

 neither a black nor a brown spot is to be seen. The reddish 

 colour of the loins is marked by a wide greyish brown line, 

 which separates it from the white colour of the back part of 

 the body, as well as to some degree from the greyish brown 

 thighs, on which latter and the sides it can be seen that the 

 brown hair is mixed with some white ; along the spine there 

 is a dark line from the shoulders to the loins. 



Such is the coloration of 0. Polii in winter during the 

 month of October, whilst in summer it appeared to Mr. Seme- 

 noff, who saw these sheep at Han-tengri, to be darker. 



A young male, two and a lialf years old, is greyish-brown 

 on the upper portions of the body, without the reddish tint of 

 tlie adult animal ; in the remaining parts it fully resembles 

 the adult, with the exception of the greyish brown colour 

 extending further on the loins ; and the sides and neck are 

 also of this colour. At this age there is no mane, and 

 only on the nape and partly also between the shoulders the 

 hair is rather longer and of a blackish brown colour ; 

 there is also no dark line on the spine ; but the marking of the 

 loins resembles that of the adult. 



When the animal has attained the age of two and a half 

 years, the horns already form half a circle ; all the edges are 

 sharp and the sides flat. 



The female is unknown. 



0. Polii was met with by Mr. Semenoff on the high plains 

 near the snow-covered summits of the gigantic mountains of 

 Han-tengri, at the sources of the rivers Karkara, Tekes, and 

 Sari-jaws. These places form the most northern limits of its 

 range, which, to the south-west, extends as far as the Narin, 

 the upper Syr-Darja, and the tributaries of the Kashgar-Darja 

 at the frontier of Turkestan. I found skulls of 0. Polii within 

 a distance of from 10 to 12 versts to the north of the above- 

 mentioned rivers, at the Ulan, about the mountains of Atpash; 

 here it lives together with 0. Karelini^ but only in very 

 limited numbers ; and these localities form the narrow line 

 where these two species are found together. 



