214 Proceedings of the Biological Society of Washington. 



Texas: Lipscomb; Lubbock; Mobeetie; Texline; Washburn. 

 New Mexico: Cabra Springs; Clayton; Loveless Lake, Lincoln County; 

 Roswell; Tucumcari. 



Citellus tridecemlineatus monticola, subsp. nov. 



Type. — Male adult, skin and skull, No. 209,265, U. S. National Mu- 

 seum (Biological Survey collection); collected June 15, 1915, at Marsh 

 Lake,' White Mountains, Arizona (9,000 feet altitude), by Edward A. 

 Goldman; original number 22,616. 



Subspecific characters. — Similar to Citellus t. alleni (of Wyoming), but 

 upperparts chestnut-brown instead of sepia and underside of tail more 

 reddish; similar to Citellus t. parvus, but larger; coloration of upperparts 

 and underside of tail darker; underparts more buffy. Compared with 

 kollisteri: Upperparts paler, the dorsal stripes more whitish (less buffy); 

 and underside of tail more reddish. 



Description of type. — Ground color of upperparts chestnut-brown; light 

 stripes and spots creamy white; front feet pinkish buff; hind feet cartridge 

 buff, the thighs mikado brown; tail above, pinkish cinnamon on proximal 

 third, the remainder fuscous-black, broadly edged with cartridge buff; tail 

 beneath, russet, bordered with fuscous-black and tipped with cartridge 

 buff; underparts and lower sides cartridge buff. 



Range. — Known only from the type locality — a plateau at an elevation 

 of about 9,000 feet in the White Mountains, Arizona. Specimens from 

 SpringerviUe, at the base of the mountains, are intermediate between 

 monticola and parvus. 



lAlso called Big Lake. 



