THE LIFE OF MAMMALS 
regarded by Merriam, Hornaday,” and other American natu- 
ralists as distinct species, as follows : — 
ROCKY MOUNTAIN BIGHORN. 
(1) Stone’s, — somewhat smaller than the bighorn; light colored when 
young, dark in maturity, with a nearly black dorsal stripe, and wide-spread- 
ing horns grooved along the side; it makes its home on the snowy ranges 
between the heads of the Stikeen and the Yukon. (2) Fannin’s or “saddle- 
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