344 VERTEBRATE ANIMALS OF THE UNITED STATES 



foot 35 mm.: central California from Placer County to the Klamath 

 Lakes. 



E. senex (Allen). Color uniform gray; ears small; length 263 mm.; 

 tail 114 mm.; hind foot 35 mm.: Yosemite Park to the Des Chutes 

 River, Oregon. 



E. speciosus (Allen). Like E. merriami; tip of tail black; length 

 234 mm.; tail 91 mm.; hind foot 32.: San Bernardino and San Jacinto 

 Mountains, California. 



E. f rater (Allen). Color pale gray; tail deep orange; length 233 

 mm.; hind foot 32 mm.: western Nevada to central California. 



E. panamintinus (Merr.). Color pale gray; facial stripes indistinct; 

 length 208 mm.; tail 96 mm.; hind foot 31 mm.: west side of Great 

 Basin in California and Nevada. 



E. amcenus (Allen). Color gray; flanks ochraceous brown; belly 

 white; length 207 mm.; tail 70 mm.; hind foot 30 mm.: Klamath Lakes 

 to Lake Tahoe. 



E. canrinus (Merr.). Similar to E. amcdnus, but without white 

 behind the ears: Olympic Mountains, Washington. 



E. cinereicollis (Allen). Color gray; flanks yellowish brown; length 

 247 mm.; tail 102 mm.; hind foot 35 mm.: San Francisco and Mogollon 

 Mountains, Arizona. 



E. umhrinus (Allen). Color yellowish brown; outer dark stripes 

 obsolete; length 249 mm.; tail 100 mm.; hind foot 32 mm.: Wasatch 

 and Uinta Ranges, Utah. 



E. quadrivittatus (Say) . Color gray, yellowish on the sides : length 

 223 mm.; tail 82 mm.; hind foot 31 mm.: Michigan to Wyoming., 



Subspecies of E quadrivittatus 



E. q. animosus Warren. Color paler: southeastern Colorado; Upper 

 Sonoran zone. 



E. q. gracilis (Allen). Body larger, more slender; tail longer: 

 Transition zone. New Mexico and Arizona. 



E. q. luteiventris (Allen). Colors bright; under parts buff; flanks 

 ferruginous; size larger: Rockies in Montana. 



E. q. neglectus (Allen). Colors bright; size large: northern Michigan 

 to northern Minnesota; Canada. 



E. q. horealis (Allen). Size small; colors yellower: Minnesota 

 to Idaho; north to Alaska. 



E. minimus (Bachman). Size small; color gray, rusty yellow on the 

 flank; tail black above, yellowish below; length 200 mm.; tail 85 mm.: 



