Nelson—A Neiv Subspecies of Moose from Wyoming. -73 
Measurements of type taken in the flesh. — Total length, 2540 niin.; length 
of hind foot, 762 nun.; greatest length of front hoof, 130 nun. (same 
measurement in adult d' from New llrunswick, 153 mm.). 
Skull —So far as the small series of fully adult skulls available for com- 
])arison indicate there are no appreciable cranial ditlerences between 
tyi)ical yl. americanus and A. americanus slLlrasi. 
Remarks. —A comparison of the type and an adult female topotype of 
the Shiras moose, with five adult specimens of typical Aloes americanus 
collected during the same time of year in IMaine and eastern Canada 
indicate that the pale brown backs, })ale ears and small hoofs of the 
present form are very constant differences characterizing a strongly 
marked geographical form. The female topotype of the new form taken 
the same day as the type has an even paler brown back than the type, 
especially on the rump, top of shoulders and along the nape; the ears 
are also paler gray. 
