256 BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



Subgenus TAMIASCIURUS Trouessart (1880). 

 CHICKAREES OK RED saillRKELS. 



Dentition.— 1. i^l; P. n; M. §E-3=22. 



Squirrels of small size [Chickarees] ;• tail narrow, even includ- 

 ing the hairs, shorter than the body; muzzle short; hind feet, in 

 summer, naked beneath for one-half or one-third their length from 

 the heel; anterior small upper molar either wanting or, when per- 

 sistent, very small and thread-like; a black stripe on the flanks; 

 back of the ears more or less tufted in winter. {S. F. Baird.) 



SCIURUS FREMONTI MOGOLLONENSIS (Mearns). 

 M060LI0N CHICKAREE. 



Sciurus hudsonius mogoUonensis Meaens, Bull. Am. Mus. Nat. Hist, II, 



p. 277, Feb. 21, 1890 (original description). 

 Sciurus fremonti mogoUonensis, Mebriam, North American Fauna, No. 3, 



1890, p. 48 (San Francisco Mountain, Arizona). — Allen, Bull. Am. 



Mus. Nat. Hist., X, July 22, 1898, p. 291 (Revision of the Chickarees 



or North American Red Squirrels). — Miller and Rbhn, Proe. Bost. 



Soc. Nat. Hist., XXX, No. 1, Dec. 27, 1901, p. 34 (Syst. Results Study N. 



Am. Mam. to close of 1900). 

 Sciurus hudsonicus mogoUonensis, Allen, Bull. Am. Mus. Nat. Hist., VII, 



1895, p. 243 (White Mountains, Arizona). 

 [Sciurus fremonti] mogoUonensis, Elliot, Field Col. Mus., Zool. Ser., II, 



1901, p. 67 (Synop. Mam. N. Am.). 

 Him-mal'-e-ga-ta of the Hualapai Indians of Arizona. 

 KoU'-che-ow-eW of the Hopi Indians of northeastern Arizona. 



Type-locality. — MogoUon Mountains, central Arizona. (Type in 

 the American Museum of Natural History.) 



Geographical range. — Boreal Zone of Mountains of the Colorado 

 Plateau, in northeastern Arizona. 



Description. — Similar to Sciurus fremonti Audubon and Bachman, 

 but redder and larger. Like other chickarees (Subgenus Tami-os- 

 ciurus), it has a reddish dorsal stripe in winter, but not in summer; 

 also differently colored feet. In winter the color of the upper surface 

 is reddish centrally from the occiput to the base of the tail, finely 

 mixed with black and grizzled on the sides, which become more gray- 

 ish low down and on the outer aspect of the thighs; black line of 

 sides indicated, though not strongly pronounced; coloring of limbs 

 externally much like the sides, except the feet, which are whitish, 

 sprinkled with black and fulvous hairs; fore part of head grayish, 

 becoming dusky on the forehead; under surfaces (except the tail), 

 a circle around eye, and end of nose except a narrow blackish line 

 above, white; entire pelage plumbeous at base; that below appear- 

 ing plumbeous on the surface, in places, where the white tips have 



