THE MUSEUM. 



69 



nearly as in winter but narrower and 

 lefjs full. 



Sti/irus /iitdsoniius hujiaix. Bangs, 

 SouTHKKN Ciiu KAREE. Winter pel- 

 age similar to that of .S". liinisoiiiiiis 

 proper, but the medium dorsal band is 

 a brij^hter, deeper red, and the rest of 

 the upper surface more yellowish and 

 olevaceous, with the black annula- 

 tions narrower; below with the white 

 much less strongly vermiculated with 

 black; central area of tail above more 

 strongly reddish. The sub-marginal 

 zone of the tail is narrower and the 

 red hairs of the central area are clear 

 red, i. e. not ringed with black. Sum- 

 mer pelage. In general much redder 

 and more brightly colored. General 

 coloration above, strong reddish yel- 

 low; feet ochraceous or reddish ochra- 

 ceous, this color extending up to the 

 fore arm and leg; below clear white. 



The range is the Aileghanian and 

 Carolinean faun;^ of the humid prov- 

 ince Red squirrels from Massachu- 

 setts, New York, New Jersey, the 

 states bordering the Great Lakes, 

 southern Ontario and thence westward 

 to Wisconsin and southern Minnesota 

 and southward to the Appalachian 

 Highlands, are quite different in col- 

 oration from the Red Squirrels of 

 Arctic America (Labrador west to 

 Alaska! in both winter and summer 

 pelages, the northern form being much 

 paler in general coloration than the 

 southern. 



Siii/j-iis liudsonicits dakotcnsis, 

 Allen, Black Hili.s Chickaree. 

 Winter pelage. Median dorsal band 

 light yellowish rufous; rest of upper 

 parts and outside of limbs and feet 

 yellowish gray, the hairs fulvous nar- 

 rowly ringed with black; ventral sur- 

 face clear white: tail above with the 

 central area like the back, the black 

 border narrow, fringed with fulvous; 

 tail below with the central area pale 

 gray basally, passing into very pale 

 fulvous distally; bordered and fringed 

 as above. Summer pelage. Above 

 pale yellowish olivaceous gray, the 

 hairs finely aunulated with black; feet. 



outside of shoulders and edge of thighs 

 yellowish rufous; lateral line obsolete 

 (wanting in 12 specimens out of the 

 18 examined and clearly indicated in 

 only two, both young of the year) 

 ventral surface pure white; tail above 

 bright yellowish rufous, much lighter 

 than in the northern .S'. Iiudioniciii 

 and eastern 5. hudsoiiicus loquax, 

 with the usual narrow black sub-mar- 

 ginal band and yellow fringe; tail be- 

 low, with the central area grizzled yel- 

 lowish and black. Geographical range 

 the Black Hills of South Dakota and 

 adjoining portions of Wyoming. 



Sciurus liudsonicits haiLyi, sub- 

 species nov. Bailey's Chickaree. 

 Winter pelage. Above with a broad 

 median reddish band; rest of dorsal 

 surface pale yellowish gray; below, 

 white, finely vermiculated with black. 

 Summer pelage. Above, yellowish 

 olivaceous, the hairs pale yellow nar- 

 rowly ringed with black; fore and hind 

 feet ochraceous orange to reddish or- 

 ange, this color extending to the 

 shoulders and edge of thighs; a dis- 

 tinct blackish lateral line 'present in 

 at least 90 per cent, of the specimens) 

 below, white, usually with a distinct 

 dash of yellow; tail above with the 

 central area dark cherry red, varying 

 to yellowish red, and extending about 

 three-fourths the length of the tail; 

 some of the hairs being, however, nar- 

 rowly fringed with black, giving a 

 griz;5led effect, central area bordered 

 by a zone of black, with an outer, 

 rather broad fringe of pale yellow; 

 lower surface of tail pale yellowish 

 gray, slightly grizzled with black as 

 above with a black band and a pale 

 yellow fringe. Geographical range, 

 outlying mountain ranges of central 

 Wyoming and eastern Montana, and 

 northward into Alberta in the eastern 

 foothills of the Rocky Mountains. Its 

 range includes the Bighorn, Pryer and 

 Laramie Mountains in Wyoming and 

 the Big Snow, Bear Paw and Little 

 Rocky Mountains in Montana and 

 probably other outlying, pirie cov- 

 ered buttes and hills. Sciurus 



