_Neotamias_ Howell, A. H., N. Amer. Fauna, 52:26, November 30, 1929.
Type, _Eutamias merriami_ J. A. Allen [=_Tamias asiaticus merriami_
J. A. Allen].
_Neotamias_, Ellerman, J. R., The families and genera of living rodents.
British Mus. (Nat. Hist.), 1:426, June 8, 1940.
_Neotamias_, Bryant, M. D., Amer. Midland Nat., 33:372, March, 1945.
_Diagnosis._--Size small to medium; lambdoidal crest barely discernible;
supraorbital notches even with, or posterior to, posterior notch of
zygomatic plate; baculum with distinct keel on dorsal surface of tip
which curves upward; pelage silky; ears long and pointed.
_Geographic range._--Western Nearctic. West to Pacific Coast. South
to Lat. 20°30' in Baja California and to northwestern Durango and
southeastern Coahuila, Mexico. East to eastern New Mexico, westernmost
Oklahoma, eastern Colorado, Wyoming, northwestern Nebraska, western
and northwestern South Dakota, western and northwestern North Dakota,
northeastern Minnesota, northern Wisconsin and Upper Peninsula of
Michigan, and eastern Ontario. North to southwestern shore of Hudson
Bay, southern shore of Great Slave Lake and Yukon River, Yukon.