268 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. III. 



the rest; limbs mixed plumbeous and buff, the former hue pre- 

 dominating; chin, throat, and between thighs white; rest of 

 under parts yellowish white, the hairs being white to the roots, 

 excepting a line along the side where the base of the fur is plum- 

 beous ; hands and feet white ; wrists and ankles dusky ; tail above 

 and on sides black, beneath grayish white; ears dark brown. 



Measurements. Total length, 380; tail vertebrae, 176; hind 

 foot, 39.5; ear, 33. Skull: occipito-nasal length, 46; Hensel, 

 38; zygomatic width, 23; interorbital constriction, 5.5; width 

 of braincase, 18; length of nasals, 18.5; palatal length, 19; 

 length of incisive foramina, 9; length of upper tooth row, 9; 

 length of mandible, angle to base of incisor, 23; length of lower 

 tooth row, 8. 



This wood rat has quite \a different appearance from its rela- 

 tive N. mohavensis of the Mohave Desert, being yellowish where 

 the other is gray ; and the upper part of the tail is a more intense 

 black, that of the other form being of a bluish black. It is a 

 mountain form, the small series before me having been procured 

 by Mr. Heller at Mt. Pinos and other heights in the vicinity. 



FAM. CANID^E. 



UROCYON. 

 Urocyon cinereo-argenteus inyoensis, Subsp. nov. 



Type locality. Beveridge Canon, Inyo Mountains, Inyo 

 County, California. 



Genl. Char. Color silvery gray, much paler than U. c. cali- 

 fornictis, without ochraceous lines anywhere, and black on lower 

 part of back only. 



Color. Adult. Entire upper part of breast and body and 

 also sides silvery gray with a black streak over lower part of 

 back; chin and nose above black; sides of neck and bar across 

 lower part of neck buff; fore legs silvery gray above, wood 

 brown on outer side, and whitish on inner side; hind legs silvery 

 gray above, drab gray on outer side, whitish on inner side; 

 under parts white; tail silvery gray, slightly tinged in places 

 with buff, with a black curving line, tip black; ears brownish, 

 mixed with silver white hairs on outside, white inside; head 

 back of ears buffy. 



Measurements. Total length, 950; tail vertebrae, 385; hind 

 foot, 140; ear, 82. Skull: total length, 124; occipito-nasal 

 length, 113. Hensel, 118; zygomatic width, 66; interorbital 



