290 PROCEEDINGS OF THE ACADEMY OF [1899. 



Kaj Nag mountains, 8,000 feet. 

 Krishnagunga valley, 7,000 feet. 

 Central Kashmir, 12,000 feet. 



This species occurs in the mountain parks Avell below timber 

 line. From the information given me by Dr. Abbott I should 

 suppose that its faunal position is lower boreal. In the middle 

 boreal and upper boreal it is replaced by members of the subgenera 

 Phaiomys and AUicola. 



Color. — The five skins show no marked variation in color. In 

 all, the entire dorsal surface is a fine grizzle of dull woodbrown and 

 sealbrown, the result of which is a general tint not far from sepia. 

 Such variation as occurs is due to slight differences in the balance 

 Ijetween the component colors. On the sides and belly the seal- 

 brown disappears, and the woodbrown changes to a yellowish clay 

 color, varying slightly in intensity and in the amount of clouding 

 due to the dark bases of the hairs. Tail obscurely bicolor, sepia 

 above, dirty whitish beneath. Feet dusky sepia, varying consider- 

 ably in depth; occasionally almost blackish. 



Skull. — Three skulls show little variation beyond that due to 



differences in age. The skull of the type is the oldest and most 



angular. It measures: greatest length, 



24.6 ; basal length 24; basilar length, 



23 ; zygomatic breadth, 16 ; mastoid 



breadth, 12.4; interorbital constriction, 



3.8; length of nasals, 8 ; anterior breadth 



across nasals, 3.2 ; posterior breadth 



Fig. 3. Enamel pattern of across nasals, 0.5; diastema, 9; palatal 



MUrotus ferUUs. (X 6.) ^^^^^^^ ^^. occipital depth, 7; frouto- 



palatal depth (at middle of molar series), 7; mandible, 16; maxil- 

 lary toothrow (alveoli), 6.4; mandibular toothrow (alveoli), 6.2. 

 Measurements — For measurements, see table, p. 291. 



Microtus brachelix sp- nov. 



Typeyonxig adult ? (skin and skull), No. 63,445, United States 

 National Museum, collected at Nagmarg, Kashmir (altitude, 9,000 

 feet), November 15, 1895, by Dr. W. L. Abbott. 



General characters. — Precisely similar to Microtus fertUis (True), 

 but with much smaller ears. 



Fur and color. — In length and quality of fur as well as in color 



