Miller.] 194 [Feb.;, 
Adult (Type $ skin and skull No. 2533 collection of GerritS. Miller, Jr., 
Mount Washington, N. II., July 12, 1893, collected in the Alpine Garden 
near the head of Tuckerman's llavine at about 5,300 feet altitude) : length, 
148; tail vertebrae, 39.0; hind foot, 19; ear, 13; dorsal surface clay 
color, shading gradually to reddish mars-brown on rump and lumbar 
region and to cream-buft' on the sides, everywhere inconspicuously 
varied with blackish and whitish hairs ; belly smoke-gray slightly tinged 
with cream color and mixed with the blackish slate of the basal part of 
the fur, the color of the ventral surface passing insensibly into that of 
the sides; dorsum of manus and pes grayish white; tail indistinctly 
bicolor, sepia dorsally and at tip, cream colored ventrally. 
Young (5 skin and skull No. 2538, same locality as adult, July 14, 1893) : 
dorsally grayish rufous, becoming grayer on the sides and fading into 
smoke-gray on the ventral surface, where, as in the adult, the dark bases 
of the hairs show through distinctly. 
There is little variation in color among the adults of Evotomys 
gapperi ocJiraceus. Some are slightly more tinged with red than 
others, and the amount of the cream colored wash on the belly is 
variable. One adult male (No. 2542, July 11) is as red as 
the paler examples of E. gapperi, and a few others approach 
this specimen in richness of tint. The black-tipped hairs on the 
back and sides are never conspicuous. The young are as uniform 
in color as the adults. Several of the immature examples show a 
very distinct wash of cream-buff in the middle of tlie belly, while 
one male two thirds grown (No. 2550, .July 9, 1893) has a conspic- 
uous buff stripe from nose to shoulder separating tlie color of the 
dorsal and ventral surfaces. This individual is also slightly 
albinistic, being marked with a nariow white line in the middle of 
tiie belly. 
Evotomys gapperi ochraceus differs strikingly from E. gapperi 
in its strongly ochraceous tints and almost entire lack of red. 
An adult of the latter form {^ No. 1570) taken at Peterboro, 
Madison Co., N. Y., July 17, 1892, is ferruginous dorsally, 
becoming slightly brighter on the rump and lumbar region and 
shading gradually to buffy clay color on the sides ; the belly 
cream color. Throughout the back and sides the fur is notice- 
ably sprinkled with black-tipped hairs. The fur in the lumbar 
region in the type 'of E. gapperi ochraceus is 14 mm. long; in 
the specimen just described its length is but 10 mm. In each 
of these specimens the pencil measures 6 mtn. The specimen 
of Evotomys gapperi just described very fairly represents the 
average of a large series of summer examples. The winter 
