664 13. COLUBRIDE 
County; Ogden, Weber County; and Bountiful, Davis 
County. 
Nevada records are Ruby Mountains, and the vicinity 
of Carlin, Elko County; the Cortez Range, Eureka County; 
Holbrook, Douglas County; Ormsby County; and Wads- 
worth, Washoe County. 
Remarks.—The fact that more than half the specimens 
from west of the Rocky Mountains have eight labials while 
those from farther east usually have seven causes us to con- 
tinue to regard them as distinct subspecies. 
Habits——Like other members of its genus, the western 
Yellow-bellied Racer is a skillful climber, and often runs 
through the tops of the bushes at almost as great a speed 
as when upon the ground. It is frequently found, how- 
ever, in open country or in fields of growing grain, the grassy 
margins of rivers, or moist meadows. It is a very graceful, 
gentle snake. 
Lord says, “Its favourite haunt appears to be in the thin 
brush skirting the edges of open prairie land, and the prin- 
cipal part of its time in the summer appears to be passed in 
the bushes, up the stems of which it climbs with great ease 
and celerity; when there, it lazily basks away its time coiled 
round a branch. I suspect tree frogs and insect larve con- 
stitute its usual food.” 
145. Coluber flagellum piceus (Cope) 
WESTERN WHIP SNAKE 
Plates 64, 65 and 66 
Herpetodryas flavigularis HALLOWELL, Rep. Pac. R. R. Surv., Vol. X, 
1859, p. 12; HEERMANN, Rep. Pac. R. R. Surv., Vol. X, 1859, 
Pp: 24: 
Masticophis testaceus Core, Proc. Acad. Nat. Sci. Phila., 1866, pp. 305, 
912. 
Drymobius testaceus, Cooper, Proc. Cal. Acad. Sci., Vol. IV, 1870, pp. 
68, 76. 
