MAMMALS 335 



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; stripes conspicuous; flanks 

 ochraceous brown; belly white; length 207 mm.; tail 70 mm.; hind 

 foot 30 mm.: central California into Canada; eastwards into Montana; 

 Transition and Boreal zones. 



Subspecies of E. amcEnus 



E. a. amcenus (Allen). Northwestern California, central and 

 eastern Oregon and Washington. 



E. a. moncesis Grinnell and Storer. Cobrs paler: eastern portion of 

 central Sierra Nevadas; Canadian zone. 



E. a. luteiventris (Allen). Wyoming and Montana, northwards into 

 Alberta. 



E. a. caiirinus (Merr.). 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. iimbrinus (Allen). Color yellowish brown; outer dark stripes 

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

 and Uinta Ranges, Utah. 



E. quadrivittatiis (Say). Color gray, yellowish on the sides; stripes 

 conspicuous: length 237 mm.; tail 100 mm.; hind foot 31 mm.: Colorado 

 and northern New Mexico and Arizona. 



E. minimus (Bachman). Size small; color pale, being gray, rusty 

 yellow on the flank; tail black above, yellowish below; length 200 mm.; 

 tail 85 mm.; hind foot 29 mm.: eastern Washington to the Dakotas; 

 south into Arizona and New Mexico. 



Subspecies of E. minimus 



E. m. minimus Bachman. Wyoming, northeastern Utah and 

 western Colorado. 



E. m. borealis (Allen). Size small; colors darker: North Dakota to 

 Idaho; north to Alask,a; in forests. 



E. m. caryi Merr. Color paler and grayer: San Luis Valley, Colorado, 



E. m. consobrinus (Allen). Size larger; colors darker: eastern border 

 of the Great Basin in Utah, Colorado and New Mexico. 



E. m. pictus (Allen). Colors pallid: Great Basin from western 

 Utah westward; northward to eastern Washington. 



