1904 J Allen, A New Sheep from Kamchatka. 295 



Fig. 3. Ovis borealis (?), No. 18212, old male, Taiganose Peninsula, N. E. Siberia. 

 6 nat. size. 



'nuchal edge,' very broad basally, but becoming thinner and sharper 

 apically. As shown by the figures (Figs, i and 4), the spiral is very 

 close; at the end of the first circle the horns approach the face just 

 in front of the orbits so nearly as to be distant from the facial portion 

 of the skull by only a space equal to the anteorbital breadth of the 

 skull, and then sweep abruptly outward. The form of the spiral is 

 thus similar to that seen in O. ammon. 



Length of horn, measured along the frontal surface, 1015 mm. (40 

 in.); circumference at base, 295 (iij in.); distance between tips, 605 

 (23! in.) ; distance apart at point of greatest inward curvature (oppo- 

 site molars), 225 (8f in.) ; breadth of frontal surface at base, 80. 



Skull, total length (front of premaxillae to occipital crest), 280; 

 basal length (premax. to posterior border of occip. condyles), 255; 

 greatest breadth at posterior border of orbits. 168 ; palatal length, 125; 

 post-palatal length (to basion), no; palatal breadth at m 8 , 47; mas- 

 toid breadth, no; facial breadth above, m a , 79; length of upper 

 toothrow, 69; last upper molar, 20.3 x 12.5. 



In the length and general character of the curvature of the 

 horns there is a close resemblance between O. storcki and the 

 skull of the Siberian Argali (Ovis ammon) from the Altai, fig- 

 ured by Mr. Rowland Ward in his 'Records of Big Game' 

 (4th ed., 1903, p. 383), but the dimensions of the horns are 



