LIST OP SPECIES. II 
Page^ 
86. «»Sciunis douglassii, Bach.—Oregon Bed Squirrel.—San Francisco to Puget’s Sound, 
near the coast. 215 
23. PTEROMYS, Cuvier. 86 
87. — Pteromys volucella, Cuv.(?)—Flying Squirrel.—United States, to the Missouri 
River. 286 
88. — Pteromys hudsouius, Fischer.—Northern Flying Squirrel.—Northern parts of the 
United States from Maine to Minnesota, and north. 288 
89. — ^Pteromys alpimis, Richardson.—Rocky Mountain Flying Squirrel.—Rocky Moun¬ 
tains?..'... 289 
90 — Pteromys oregonensis, Bach.—Oregon Flying Squirrel.—Near mouth of Columbia 
River to Southern California?. 290 
24. T AMI AS, Illiger. 291 
9L— Tamias striatus. —Chipmunk.—Montreal to Virginia, and west to the Missouri. 292 
92. — Tamias quadrivittatus, Rich.—Missouri Striped Squirrel.—Upper Missouri to 
Rocky Mountains, and west to the Cascade Range. Along the Rocky 
Mountains as far south as Fort Staunton, New Mexico. Lat. 33° 30'... 297 
93. — ^Tamias dorsalis, Baird.—Gila Striped Squirrel.—Fort Webster, New Mexico, 
about Lat. 33.00, Long. 108.00. 300 
94. — ^Tamias townsendii, Bach.—Townsend’s Striped Squirrel.—From Puget’s Sound to 
Petaluma, California, along and west of Cascade Mountains. 301 
25. SPERMOPHILUS, Cuvier. 304 
a. Otospermc^Mlus, Brandt. 305 
95. — Spermophilus beeche3d. Rich.—California Ground Squirrel.—Coast of California, 
from San Diego to Fort Reading... 307 
96. — Spermophilus doi^lassii. Rich.—Columbia Ground Squirrel.—Columbia River, 
from Fort Dalles to its mouth, and south to Klamath Lake. 309 
97. Spermophilus grammurus, Bachman.—Line-Tailed Squirrel.—Head of Arkansas 
River; along the Rocky Mountains to Sonora. 310 
98. — Spermophilus couchii, Baird, (n. s.)—Black Ground Squirrel.—Northern Mexico... 311 
99. — Spermophilus lateralis, Rich,—Say’s Striped Squirrel,—Rocky Mountains to Cas¬ 
cades, and between about Lat. 38° 25' to northern line of California... 312 
h. Colobotis, Brandt. 306 
100. — Spermophilus harrisii, Aud. & Bach.—Harris’s Spermophile.—Mohave Desert... 313 
