232 
A R VI COL A O REG ONI.— Bach. 
Oregon Meadow-Mouse. 
PLATE CXLVII. Fig. 3. — Male. — Natural Size. 
A. M. musculus magnitudine, gracilior, auribus brevibus vellere abscon- 
ditis ; colore supra cinereo fusco, subtus cinereo. 
CHARACTERS. 
Size of the house mouse ; slender form ; ears, short, nearly naked, and con- 
cealed by the fur ; colour, ashy brown on the back, cinereous beneath. 
SYNONYME. 
Arvicola Oregoni — Oregon Meadow-Mouse. Bachman, Jour. Acad. Nat. Sci., 
vol. viii., part i., p. 60. 
DESCRIPTION. 
Head, of moderate size ; body, slender, eyes, small ; ears, concealed by 
the fur and nearly naked, being clothed with but a few short and scattered 
hairs ; feet, small ; whiskers, as long as the head ; a very minute blunt 
nail on the fore-foot ; tail, and feet, clothed with short hairs. 
COLOUR. 
The fur, on the upper surface, is bluish from the roots to near the tips, 
where most of the points of the hairs are black, a shade of brownish 
appearing beneath ; under surface, ashy white ; above the eye, and imme- 
diately in front of the shoulders there is a line of light brown ; whiskers, 
white and black, the latter predominating ; feet, flesh coloured ; incisors, 
yellow ; tail, dark brown above, yellowish-white beneath, with the extreme 
end black. In Townsend’s Notes it is stated that the specimen we have 
described above, was an old male, captured on the 2d of November, 1836. 
DIMENSIONS. 
Inches. Lines. 
Length of head and body, 3 0 
“ of tail, 1 2 
