Fes., 1912. Mammals oF ILtinois AnD WisconsIN— Cory. 145 
Indiana. Includes within its range the whole of Iowa, northern 
Missouri, northern two-thirds of Illinois, a small portion of north- 
western Indiana, southern and western Wisconsin and at least the 
southern and western half of Minnesota. An isolated colony occurs 
in the vicinity of Tuckerton, New Jersey, which has descended from 
a pair introduced there in 1867.* It has also been introduced 
near Georgian Bay, Ontario.f 
Description — Adult: Upper parts (except head and tail) grayish 
brown or pale tawny brown, the hairs vermiculated with blackish; 
a buffy white ring around the eye; top and sides of head blackish, 
faintly speckled with white; under parts buffy white or tawny white; 
terminal two-thirds of tail grayish, the hairs banded with black and 
tipped with white. 
Immature: The tawny tinge much less pronounced and the 
back with irregular bars of black. 
Measurements — Total length, 15 in. (380 mm.); tail vertebra, 4.75 
in. (120.6 mm.); hind foot, 1.88 in. (47.6 mm.). 
Remarks — This species has a superficial resemblance to a Gray Squirrel 
and might be mistaken for one by those not familiar with mammals. 
The tail, however, is much shorter and less bushy (tail always less 
than 6% inches), the body color is more tinged with tawny, and 
the ears are much shorter. 
Franklin’s Prairie Squirrel, Franklin’s Spermophile or ‘Gray 
Gopher’’, as it is variously called, occurs in various localities through- 
out southern and western Wisconsin and at least the northern two- 
thirds of Illinois, although more local in distribution and less common 
than the preceding species. Jackson considers them quite common 
in Wisconsin west from Rock County to the Mississippi River and 
north to Pepin County. He states he has taken specimens in Rock 
County and has observed the species in Green, Sauk and Jefferson 
counties (J. c., p. 18). Hollister gives it as common in isolated colonies 
in various parts of Walworth County and says, ‘‘I have collected many 
specimens near Delavan. The largest colonies here are located on 
Ridge Prairie just west of the town, and on the border of Big Marsh, 
seven miles north of Delavan on the Whitewater road. The Biological 
Survey has records of this species from Janesville, Kansasville, Madison, 
Plover, Racine, Ripon and Whitewater” (l.c.,p.139). It is apparently 
not uncommon in Dodge County, as Mr. W. E. Snyder has collected 
a number of specimens near Beaver Dam. In Illinois it is found in 
scattered communities throughout the greater portion of the central 
* Allen, Monog. N. Amer. Rodentia, 1877, p. 833. 
+ Seton, Life Histories of Northern Animals, I, 1909, p. 374. 
