MAMMALS 303 



N. a. vemista (True). Size larger: western Arizona and south- 

 eastern California. 



N. a. warreni Merr. Color decidedly grayer: northeastern New 

 Mexico and southeastern Colorado. 



N. nicxicana Baird. Color grayish buff; under parts dull white; 

 feet white; tail brownish above, white below; length 327 mm.; tail 149 

 mm.; hind foot 34 mm.; fur on throat and breast plumbeous: deserts of 

 the southwest. 



Subspecies of N. mexicana 



N. m. mexicana Baird. Western Texas, southern New Mexico and 

 Arizona. 



N. m. fallax (Merr.). Size larger; color grayer: mountains of 

 Colorado and New Mexico. 



.v. m. pinetorum (Merr.). Size larger; color less gray: central and 

 eastern Arizona. 



N . desertoriim Merr. Size small; ears large; fur long; color pinkish 

 buff; belly and feet white; tail bicolor; length 293 mm.; tail 131 mm.; 

 hind foot 30 mm.: deserts of Nevada, Utah artd southern California. 



N . lepida Thomas. Color yellowish buff above; under parts creamy 

 or pinkish white; feet white; length 286 mm.; tail 136 mm.; hind foot 

 29 mm. : New Mexico and Arizona. 



Subspecies of N. lepida 



N. I. lepida Thom. Northern New Mexico and Arizona. 



N. I. stephensi (Goldman). Size larger; color darker and grayish 

 instead of yellowish: central Arizona and western New Mexico. 



N.fuscipes Baird. Size large; length 438 mm.; tail 209 mm.; hind 

 foot 42 mm.; color ochraceous buff, very dark middorsally; throat and 

 chest pure white; belly creamy or pinkish buff; forefeet and toes of hind 

 feet white; hind feet dusky: Pacific slope. 



Subspecies of N . fiiscipes 



N.f. mohavensis Elliot. Color grayer: Mohave Desert, California. 



N . f. fiiscipes Baird. Pacific coast region from San Francisco Bay 

 to Salem, Oregon. 



N. f. strealori Merr. Smaller; color paler; tail sharply bicolor: 

 west slopes of the Sierra Nevadas. 



