The Musk-ox 105 



the rigors of an Arctic winter; and the broad, 

 spreading hoofs, with hair on their under surface, 

 give a firm foothold on snow and ice. Two races 

 are known — the typical Canadian and the Green- 

 land {O. moschatus luardi). The latter is charac- 

 terized by the presence of a certain amount of 

 w^hite on the forehead and the smaller expansion 

 of the horns. Height at shoulder about 4 feet; 

 weight of one weighed in parts, 579 pounds 

 (D. T. Hanbury). 



Distribution. — Arctic America, approximately 

 north and east of a line drawn from the mouth of 

 the Mackenzie River to Fort Churchill on Hud- 

 son Bay, Greenland, and Grinnell Land, in latitude 

 32° 27'; approximate southern limit, latitude 

 40° N. 



