Meadow Mouse 
these little rodents to live on such vegetable matter as they have 
stored away in their subterranean galleries. That either they or 
their associates are carnivorous at times is evidenced by the partially 
devoured specimens that the trapper often finds in his traps. 
Young red-backed mice lack the rusty red tints and in some of 
the varieties a gray form of the adult occurs, an exactly parallel 
case to the red and gray screech owls which are simply dichromatic 
without relation to sex or age. 
Varieties of the Red-backed Mouse 
1. Red-backed Mouse. Evotomys gapperi (Vigors). 
Description and range as above. 
2. New Jersey Red-bached Mouse. E. gapperi rhoadsi Stone. 
Darker, with more black hairs above. Teeth heavier. 
Range. Cold cranberry bogs of Southern New Jersey. 
3. Carolina Red-backed Mouse. E. gapperi carolinensis Merriam. 
Larger and darker than E. gapperi, resembling the last. 
Range. Higher Alleghanies, Roan Mt., N. C. to Pennsylvania. 
4. Pallid Red-backed Mouse. E. gapperi ochraceous Miller. 
Duller, paler, and more ochraceous than E. gapperi. 
Range. Higher slopes of the White Mountains. 
5. Labrador Red-backed Mouse. E. proteus Bangs. 
Larger than any of the above with longer ears. Paler than 
E. gapperi and like it in exhibiting a gray phase. 
Range. Wooded regions of Labrador. 
6. Ungava Red-backed Mouse. E. ungava Bangs. 
Resembles E. gapperi,but has very small ears and peculiar skull. 
Range. Ungava, Labrador. 
Numerous species occur in the Northwest. 
Meadow Mouse 
Microtus pennsylvanicus (Ord) 
Called also Field Mouse, Meadow Vole. 
Length. 6.50 inches. 
Description. Body thick and compact, legs short, ears very short. 
Dark brown above with a general admixture of black hairs, 
shading gradually into gray on the under surface. The colout 
of the upper parts varies considerably, some individuals being 
decidedly blackish, others tinged with tawny and occasional 
specimens quite chestnut with very few black hairs. The 
under surface also varies to dull buff. 


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