Fes., 1912. MaAmMats or ILLINOIS AND Wisconsin — Cory. 193 
in search of seeds, and collecting them in autumn instead of roots, when 
it travels as often by springing over the grass as by running through it. 
This mouse probably feeds more or less upon insects, as it is carnivorous 
in captivity; though some specimens are much less so than others. On 
one occasion, I captured a pair with five young, and placed them all 
in a cage well supplied with various kinds of vegetables and grain. 
The next day, several of the young were killed and eaten, and in two 
or three days, they had all disappeared. Shortly afterwards, the 
male, which had been slightly injured, was found dead, and partly 
devoured by his rapacious spouse. After this, I fed my specimens with 
meat, as well as grain, which they ate; and, as long as they were sup- 
plied with it, they lived together harmless; but no sooner was this 
withheld, than the old ones, both male and female, devoured their 
young.” (J. ¢., pp. 93-94.) 
Specimens examined from Illinois, Wisconsin and adjoining states: 
Illinois — Olive Branch, 6; Fox Lake, 17; Reevesville, 3 = 26. 
Wisconsin — Beaver Dam, 35; Milton, 1; Delavan, 1; (M. P. M.) 
Jefferson Co., 2; Prescott, Pierce Co., 38; Maiden Rock, 1; Dela- 
van, 3; Newport, Door Co., 3 (not typical); Kelly Brook, Oconto 
Co., 1; Prairie du Sac, Sauk Co., 41; Wyalusing, Grant Co., 2=128. 
Indiana — La Porte, 2; Denver, 2=4. 
Minnesota — Ft. Snelling, 2; Steel County, 4=6 
Peromyscus maniculatus gracilis (LECoNTE). 
CANADIAN WHITE-FOOTED Mouse. CANADIAN DEER Mouse. 
Hesperomys gracilis LECONTE, Proc. Acad. Nat. Sci. Phila., VII, 1855, p. 442. 
Peromyscus canadensis ADAMS, Rept. State Board Geol. Surv. Mich., 1905 (1906), 
p. 129 (Michigan). JacKson, Bull. Wis. Nat. Hist. Soc., VI, 1908, p. 20 (Wis- 
consin). 
Peromyscus maniculatus gracilis Oscoop, N. Amer. Fauna, No. 28, 1909, p. 42 
(Michigan, Minnesota, Wisconsin, etc.). 
Type locality — Michigan. 
Distribution — ‘‘Northeastern United States and southern Canada, 
from northern Minnesota east through northern Wisconsin, Michi- 
gan, Ontario, Quebec, New York and western New England. Can- 
adian Zone’’ (Osgood). 
Special characters — Somewhat similar to P. m. bairdi, but total length 
greater and tail decidedly longer; more likely to be confounded 
with P. 1. noveboracensis, which it often closely resembles. (For 
distinguishing characters, as compared with that species, see foot- 
note page 174.) 
