312 VERTEBRATE ANIMALS OF THE UNITED STATES 



foot 41 mm.: central and western Texas and New Mexico into Mexico; 

 northward into Kansas. 



N. alhigula Hartley. Color pinkish buff above; under parts and 

 feet white; tail sharply bicolor; length 328 mm.; tail 152 mm.; hind foot 

 2,2, mm.: southwestern States. 



Subspecies of N . alhigula 



N. a. alhigula Hart. Southwestern Texas to western Arizona and 

 into Mexico. 



N. a. venusia True. Size larger: western Arizona and south- 

 eastern California. 



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

 Mexico and southeastern Colorado. 



N. mexicana 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. 



A'^. m. pinetorum Merr. Size larger; color less gray: central and 

 eastern Arizona. 



N. desertonim 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 and 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 Merr. 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. 



