THE SOl'TUEKN GRAY SCil'IKKEI;, 



461 



'I'lic (listrihutioii of the goims is nearly llio sanio as that ol* the 

 family. The species are very numerous, esi)ecially in the tr()])i('S. 

 The forms found in Indiana may be distinguished by the following 

 key : 



Size small ; length from nose to tip of tail luider 875 mm. (15 in.) ; 

 hind foot under 50 nnn. (2 in.). (Subgeiuis Taniiasciurus.) 



Sciiirus hudsouicus loquax, p. 468. 

 Size large; total length over 450 mm. (18 in.) ; belly and ears al- 

 ways more or less rusty ; upper cheek teeth, 4 on each side. 

 (Subgenus Parasciurus.) Sciurus nigcr rufivcntvr, p. 466. 

 Belly and ears w^hitish ; upper cheek teeth, 5 on each side. 

 (Subgenus Neoscinrus.) Back always somewhat rusty; 

 hind foot about 60 mm. (2% in.). 



Sciurus carolinensis, \). 461. 

 Back gray in winter; body heavier; hind foot about 70 mm. 

 (2% in.). /S'. c. leucotis, p. 464. 



SCIURUS CAROLINENSIS Gmeliii. 

 SOUTHERN GRAY SQUIRREL. 



Sciurus carolinensis GmeL, Syst. Nat., Vol. I, p. 148, 1788. 



Sciurus carolinensis carolinensis Evermann and Butler, Proc. 

 Ind. Acad. Sci. for 1893, p. 130. 1894. 

 Bangs, Proc. Biol. Soc, Wash., Vol. 10, p. 153, 1896. 



Diagnostic characters. — Size smaller than either the northern 

 gray squirrel or the fox squirrel, but much larger than the red 

 squirrel; back grayish and belly white, both having a rusty tinge. 



Description. — The southern form of the gray squirrel differs 

 from the closely related northern subspecies chiefly in its smaller 

 size and in the rusty tinge of the fur in winter; in the northern 

 form the back and ears are clear gray in winter. The dimorphic 

 black phase is seldom found in this smaller southern race. 



Measurements. — The skin of a single individual from Bloom- 

 ington measures: head and body, 250 mm. (10 in.) ; hind foot, 62 

 mm. (21/2 in.). 



Skull and teeth. — Skull slightly smaller than that of the fox 

 squirrel, with a narrow\ compressed rostrum, long nasals and broad 

 braincase. There are two premolars above (5 cheek teeth on each 

 side in the upper jaw) while the fox squirrels have but one pre- 

 molar in each side of the upper jaw. 



Bange. — The two subspecies of the gray squirrel are not sharply 

 marked off' in Indiana. I should be inclined to call most of those 

 from the southern half of the State, carolinensis. At Bloomington 



