KEY TO LAND MAMMALS OF NORTHEASTERN NORTH AMERICA 87 



Back dark yellowish rusty gray, never clear gray iu any pelage. Total length, 

 455 (18) ; tail vertebrae, 205 (8) ; Mod foot, 60 (2|). (carolin^nsis; N. Lat., 

 Carolinian) 



The southeastern gray squirrel inhabits the austral zones of the 

 eastern United States from New Jersey to northern Florida. 



Sciurus carolinensis leucotis (Gapper) N«rtheastern gray squirrel 



1830 Sciurus leucotis Gapper, Zoological journal. 5:206. (Region between 

 York and Lake Simooe, Ontario) 



1877 Sciurus carolinensis var. leucotis Allen, Monogr. N. Am. 

 rodentia, p. 706. 



1896 Sciurus carolinensis leucotis Bangs, Proo. biolog. soc. Wash- 

 ington. 28 Dec. 1896. 10: 155. . 

 Back clear silvery gray in winter pelage, often tinged with yellowish brown in 



summer, belly occasionally with rusty blotches. Total length, 500 (19f); tail 



vertebrae, 220 (8J) ; hind foot, 70 (2i). (Ieuc6 tis; Gk., white ear) 



The northeastern gray squirrel occurs in the deciduous forests of the 

 transition zone and lowermost part of the Canadian zone in Pennsylva- 

 nia, New York, New England and southeastern Canada. Wholly or 

 partly black individuals are often met with. 



Sciurus ludovicianus Custis Ivx squirrel 



Size medium; back always strongly tinged with rusty; ielly never pure white 

 (varying from bright rust color to rusty white; ears rusty), (lu d o vi c i;i u us; 

 N. Lat., Louisianian) 



The fox squirrel is confined to the forests of the austral zones and 

 lower edge of the transition zone of eastern North America. Its western 

 limit is not definitely known. Of the three or more races into which the 

 species is divisible, only the following occurs within our limits. Partly 

 or wholly black individuals are not uncommon. 



Sciurus ludovicianus vicinus Bangs Northern fox squirrel 

 1896 Sciurus ludovicianus vicinus. Bangs, Proc. biolog. soe. Wash- 

 ington. 28 Dec. 1896. 10 : 150. (White Sulphur Springs, West Virginia) 



Back mixed black and rusty; belly varying from pale rust color to rusty 

 white ; ears rusty. Total length, 590 (23i) ; tail vertebrae, 270 (I Oi) ; hind foot, 

 73 (2|). (vicinus; Lat., neighboring) 



The northern fox squirrel is an inhabitant of the forests of the transi- 

 tion zone and upper austral zone east of the Alleghanies. It formerly 

 occurred with considerable regularity as far north as central New York 

 and southern New England, but it is now fast approaching extinction, 

 specially in the northern part of its range. The western fox squirrel, 

 S. ludovicianus ludovicianus, occupies the same zones in 

 the region immediately west of the Alleghanies. 



