BIGHORN 391 
Skull and Horns of Rocky Mountain Bighorn. 
The BIGHORN SHEEP (Ovis canadensis). 
(Also known as Ovis cervina.) 
The bighorn of the American continent, inclusive of its local races, 
is a large sheep, distinguished from the Asiatic argalis, among other 
features, by the. comparative smoothness of the horns, in which the 
outer front angle is prominent and the inner one rounded off, and also 
by the smaller size of the face-glands. There is a well-marked whitish 
patch on the rump, but the amount of white on the under-parts and 
legs shows considerable local variation. In the typical Rocky 
Mountain race (O. canadensis typica) the ears are long and pointed, 
with short hair, and the horns, which are very heavy, diverge but little 
outwards, and generally have the tips broken. The Californian O. 
canadensis nelsoni is a paler southern race. On the other hand, in O. 
canadensis stonei of the North-West Territories the colour of the back 
is very dark, and the white on the belly and legs sharply defined. Both 
in this race and the white O. canadensts dalli of Alaska the horns are 
lighter, more divergent, and more sharply pointed, while the ears tend 
to become shorter, blunter, and more hairy. The grey O. c. fannint 
tends to connect stomez with da//z, and as a matter of fact all three 
intergrade. Height at shoulder about 3 feet 2 inches. Weight about 
350 lbs. 
The horns of the ewes are very small in comparison with those of the 
