miles south and 24.5 miles west of
Douglas, 7600 feet), Wyoming. Although red-backed mice probably are
found in the mountains of Natrona and Albany counties, the population,
in the Little Medicine Range is somewhat isolated. In coloration these
mice are lighter than any of the three geographic variants described
above; the dorsal stripe is narrower; the sides are more buffy; the
dorsal stripe does not project anteriorly beyond the ears as it does
in the specimens from the Medicine Bow Mountains; and the face is
grayer. These specimens resemble the population in the Big Horn
Mountains to the north more than the population in the Medicine Bow
Mountains.

The specimens from the Little Medicine Range, the Big Horn Range, and
the Tetons are possibly subspecifically distinct from the southern
specimens. Examination of specimens now allocated to _galei_ from
Montana and Alberta should aid in revealing whether the northern
animals are an unnamed subspecies.

_Specimens examined._--Total, 167, distributed as follows and unless
otherwise stated, in the collection of the University of Kansas Museum
of Natural History:

+Wyoming+: _Park County_: 28 mi. N and 3 mi. W Cody, 7200 ft., 1. _Big
Horn County_: Medicine Wheel Ranch, 28 mi. E Lovell, 9000 ft., 22;
17-1/2 mi. E and 4-1/2 mi. S Shell, 1. _Teton County_: Moran, 6244
ft., 4; Moran, 3 (James Findley Collection); 2-3/4 mi. E Moran, 6300
ft., 1; 3-3/4 mi. E and 1 mi. S Moran, 6200 ft., 10. _Washakie
County_: 9 mi. E and 9 mi. N Tensleep, 8200 ft., 3; 9 mi. E and 4 mi.
N Tensleep, 7000 ft., 1. _Johnson County_: 4 mi. W and 1 mi. S
Klondike, 6500 ft., 1; 6-1/2 mi. W and 2 mi. S Buffalo, 5620 ft., 1.
_Lincoln County_: 3 mi. N and 11 mi. E Alpine, 5650 ft., 1. _Sublette
County_: 31 mi. N Pinedale, 8025 ft., 1. _Fremont County_: Togwotee
Pass, 5 (James Findley Collection); 20-1/2 mi. W and 2 mi. S Lander,
1; Mocassin [=Moccasin] Lake, 19 mi. W and 4 mi. N Lander, 10,100 ft.,
3; 18 mi. W and 3 mi. N Lander, 1; Mosquito Park Ranger Station,
17-1/2 mi. W and 2-1/2 mi. N Lander, 9500 ft., 10; 6-1/2 mi. W and 17
mi. S Lander, 8450 ft., 4; 5-1/2 mi. W and 22 mi. S Lander, 8800 ft.,
3. _Converse County_: 22 mi. S and 24-1/2 mi. W Douglas, 7600 ft., 3.
_Carbon County_: 18 mi. SW Rawlins, 7500 ft., 2; 19 mi. E and 8 mi. N
Encampment, 9150 ft., 4; 19-1/2 mi. E and 6 mi. N Savery, 8800 ft., 1;
11 mi. E and 6 mi. N Savery, 8400 ft., 1; 14 mi. E and 6 mi. N Savery,
1. _Albany County_: 3 mi. ES