Mountain Kangaroo Rat 
73 
C. Color darker buffy, lined with black. 
a. Darker of this group, dull buffy ochraceous, lined with 
blackish hairs; under tail stripe continuous to pencil. 
P. montanus, p. 73. 
b. Ground color paler, brighter buffy, but more heavily lined 
with dark hairs; under tail stripe not continuous to 
pencil. P. montanus richardsoni, p. 76. 
FIG. 27. MOKi KANGAROO RAT, Per odtpus lougipes 
Dorsal view of skull, x 2| 
Perodipus montanus (Lat., belonging to or living in the 
mountains). Mountain Kangaroo Rat. 
Dipodomys montanus Baird, Proc. Acad. Nat. Sci. Phila., vii., 
P- 365 (1855)- 
Type locality. — Near Fort Garland (old Fort ]\Iassachusetts), 
Costilla County, Colorado (F. Kreutzfeldt). 
Measurements. — (From Merriam): Total length, 9.8; tail vert., 
5.5 ; hind foot, 1.6. 
Description. — -(From specimen taken on Conejos River, Colo., 
Sept. 3, B. S. No. 133662): Above a dull buffy ochraceous, darker 
