I 93-] Allen, Mammals from Northeast Siberia. 



Male, winter pelage. General color yellowish gray brown, lighter on 

 the flanks and over the middle region of the body, darker on the 

 shoulders, top of neck, and hinder part of back. Ears short, heavily 

 clothed, brown like the surrounding parts except the apical fourth 

 which is whitish. Forehead and face yellowish white, with a broad 

 zone of brown across the nose, but end and sides of hose whitish; chin, 

 throat, breast, and most of ventral surface dark brown; inguinal re- 

 gion, inside of thighs, and buttocks clear white, the caudal disk divided 

 by a dark band from the back continuous with the dark brown tail, 

 which is darker than the general tone of the back. Fore and hind 

 limbs dark ruddy brown, with a narrow band of dull white on the 

 posterior surface. Horns yellowish brown, or brownish wax-yellow. 



The four pelts, in full winter pelage, vary little in coloration 

 except that some are a little darker or a little lighter than 

 others. The four April skins, complete, with leg bones and 

 feet, have the coat somewhat worn and are a little lighter 

 from bleaching. Otherwise the two adult males are as above 

 described ; an adult female is lighter colored throughout than 

 the males, and a yearling male lamb is still lighter than the 

 female, the general coloration being light brownish with a 

 yellowish cast, the front of the legs darker. The tips of the 

 hairs are whitish with the under pelage brownish, showing 

 slightly through the surface. 



In none of the 7 adult skins, all in winter pelage, is there 

 any indication of a white winter coat, which Dr. Lydekker 

 appears (/. c.) to have unjustifiably assumed, in view of what 

 other observers have stated, may characterize the Kamchatka 

 Bighorn. In all of the four skins that have the head skin 

 complete, the nose and face are white, but the brown area 

 across the upper part of the nose varies in extent, being very 

 broad in one, much narrower in another, and practically 

 absent in a third. 



In color, size, slenderness, and curvature, the horns closely 

 resemble those of the Ovis dalli-stonei group, but the general 

 coloration of the animal is much different from either, closely 

 resembling that of typical O. canadensis . 



It is surprising, however, in view of the material now avail- 

 able for comparison, that the Kamchatka Bighorn should 

 have ever been considered specifically identical with the 



