EVOTOMYS. MICROTUS. 75 



Evotomys limitis Bailey. 



Evotomys limitis Bailey, Proc. Biol. Soc. Wash., XXVI, 1913, p.. 



133- 



Type locality. Mogollon Mountains, New Mexico. Altitude 



8500 feet. 



Genl. Char. Larger and grayer than E. galei. Skull and teeth 

 heavier. 



Color. Nose and face dark gray; top of head and upperparts pale 

 chestnut; flanks buffy; underparts white; plumbeous of under-fur 

 showing; tail reddish brown above, white beneath; hands and feet 

 whitish. Ex type in United States National Museum. 



Measurements. Total length, 162; tail, 42; hind foot, 20. Skull: 

 Occipito-nasal length, 26.1; Hensel, 22.9; zygomatic width, 14.7; 

 intertemporal width, 3.9; length of nasals, 8; length of upper molar 

 series, 5.3; length of mandible, 13.6. Ex type in United States 

 National Museum. 



Genus Microtus (81). 



Microtus admiraltiae Heller. 



Microtus admiralties Heller, Univ. Calif. Publ. Zool., V, 1909, p. 



256. 

 Type locality. Windfall Harbor, Admiralty Island, Alaska. 



Microtus miurus Osgood. 



Microtus miurus Osgood, N. Am. Fauna, 1901, No. 21, p. 64. 



Type locality. Head of Bear Creek in mountains near Hope City, 

 Turnagain Arm, Cook Inlet, Alaska. 



Genl. Char. Size small, tail short. Skull: Superior outline nearly 

 straight, interorbital region slightly depressed; dorsal depressions 

 between fronto-m axillary sutures; interparietal twice as long as wide; 

 third upper molar with two closed triangles ; first lower molar with five 

 closed triangles, five inner and four outer salient angles. 



Color. Fall Pelage. Upperparts, face, sides and flanks pale tawny, 

 mixed slightly with black; underparts buffy; tail dusky above, on 

 sides and beneath buffy. Worn Summer Pelage. Upperparts pale 

 buffy gray, plumbeous at roots of hair; underparts whitish gray, 

 faintly suffused with buff. Ex type in United States National Museum. 



Measurements. Total length, 153; tail vertebrae, 31; hind foot, 

 90. Skull: Basal length, 26; zygomatic breadth, 15; mastoid breadth , 

 11.4; nasals, 7; alveolar length of upper molar series, 6.2. Ex type 

 in United States National Museum. 



