_Pennington County_: 2 mi. S, 3 mi. W Scenic, 1. _Stanley County_:
1.2 mi. S, 4 mi. W Ft. Pierre, 1484 ft., 1.

WYOMING. _Albany County_: 27 mi. N, 8 mi. E Laramie, 6420 ft., 2.
_Big Horn County_: 7-1/2 mi. E Graybull, 4050 ft., 1; 7 mi. S, 1/2
mi. E Basin, 3900 ft., 1. _Campbell County_: 4 mi. N, 3 mi. E
Rockypoint, 3800 ft., 3; 1-3/5 mi. N, 3/4 mi. E Rockypoint, 2;
Rockypoint, 5; 5 mi. S, 4 mi. W Rockypoint, 1; Ivy Creek, 5 mi. N, 8
mi. W Spotted Horse, 2. _Crook County_: 1-1/2 mi. NW Sundance, 5000
ft., 3. _Fremont County_: 2 mi. N, 3 mi. W Shoshoni, 4650 ft., 1;
3/10 mi. NW Milford, 5357 ft., 1; Milford, 5400 ft., 1. _Hot Springs
County_: 3 mi. N, 10 mi. W Thermopolis, 4900-4950 ft., 7. _Johnson
County_: 1 mi. W, 8/10 mi. S Buffalo, 4800 ft., 5; 6-1/2 mi. W, 2
mi. S Buffalo, 5620 ft., 4; 1 mi. WSW Kaycee, 4700 ft., 8. _Laramie
County_: Horse Creek, 5000 ft., 3 mi. W Meriden, 1; 1 mi. N, 1/2 mi.
W Pine Bluffs, 5040 ft., 4; 1 mi. S Pine Bluffs, 5100 ft., 1; 2 mi.
S Pine Bluffs, 5200 ft., 2. _Natrona County_: 1 mi. NE Casper, 5150
ft., 1; 2-1/4 mi. W Casper, 5250 ft., 1; 7 mi. S, 2 mi. W Casper,
6370 ft., 1. _Niobrara County_: 2 mi. S, 1/2 mi. E Lusk, 5000 ft.,
1. _Park County_: 4 mi. N Garland, 2; 13 mi. N, 1 mi. E Cody, 5200
ft., 2; 6/10 mi. S, 3-2/10 mi. E Cody, 5020 ft., 1. _Platte County_:
2-1/2 mi. S Chugwater, 5300 ft., 4. _Sheridan County_: 3 mi. WNW
Monarch, 3800 ft., 4; 5 mi. NE Clearmont, 3900 ft., 6. _Washakie
County_: 1 mi. N, 3 mi. E Tensleep, 4350 ft., 5.

TABLE 2. CRANIAL MEASUREMENTS OF TWO SUBSPECIES OF REITHRODONTOMYS
MEGALOTIS.

Key to Table Headings:

A =NUMBER AVERAGED AND SEX
B = Greatest length of skull
C = Zygomatic breadth
D = Breadth of braincase
E = Interorbital breadth
F = Depth of cranium
G = Length of rostrum
H = Breadth of rostrum
I = Length of incisive foramen
J = Length of palate
K = Alveolar length of maxillary tooth-row
--------------------------+----+----+----+---+---+---+---+---+---+----
A | B | C | D | E | F | G | H | I | J | K
--------------------------+----+----+----+---+---+---+---+---+---+----
_R. m. dychei_, Douglas County, Kansas

Av. 17 (11 male, 6 female)|20.9|10.5|10.1|3.1|7.9|7.2|3.8|4.3|3.5|3.3
Minimum |20.4|10.0| 9.8|3.0|7.7|6.8|3.6|4.0|3.2|3.1
Maximum |21.9|10.9|10.3|3.3|8.2|7.9|4.0|4.5|3.9|3.4
---------