Bailey — Ten New Mammals from New Mexico. 133 



Evotomys limitis sp. nov. 



Type from the Mogollon Mountains, New Mexico (altitude 8500 feet), 

 mi Willow Creek, a branch of the Gilita. No. 148,335, d 1 ad., U. S. 

 National Museum, Biological Survey Collection. Collected by Vernon 

 Bailey, October 27, L906. Original No. 8572. 



General characters— Size slightly larger than E. g<tU i ; colors duller, 

 grayer and less buffy; skull and dentition heavier. 



Color.— Winter pelage with chestnut dorsal area less extensive than in 

 galei; general color loss yellowish and more mixed with gray; sides, 

 lace, and feet clear gray ; belly whitish ; tail bicolor ; whitish below, dark 

 gray above; pencil blackish. 



Summer pelage : Much darker chestnut than galei with dark gray sides 

 and face. 



Skull. — Larger, heavier and conspicuously more ridged than in galei ; 

 bullae large and especially deep ; dentition heavy throughout. 



Measurements. — Type: total length, 162; tail vertebrae, 42; hind foot, 

 20. Average of four males from type locality : 142; 39.5; 20; of three 

 females, 132; 35; L9.6. Skull of type: basal length, 24.."); nasals, 8; 

 zygomatic breadth, 14.7; mastoid breadth, 12; alveolar length of upper 

 molar series, 5.3. 



Ochotona nigrescens sp. nov. 



Typi from the Jemez Mts., New Mexico (alt. 10,000 feet). No. 147,976, 

 d 1 ad., U. S. National Museum, Biological Survey Collection. Collected 

 by Vernon Bailey, August 28, L906. Original number, 8447. 



General characters. — Size medium, colors very dark, with the brown 

 heavily washed with black. 



Color. — Upperparts in post breeding pelage, cinnamon brown, much 

 darkened by the black tips of the long hairs. External surface of ear 

 black, inner surface dark gray with a black hand near tip. Throat and 

 median part of belly rich cinnamon brown; top of feet soiled whitish, 

 soles of hind feet blackish. 



Skull.- Slightly smaller than that of 0. saxatilis from Colorado, more 

 arched, narrower, and with slenderer nasals and narrower prepalatal 

 vacuity. 



Measurements. — Type specimen, o 1 ad., measured in the flesh by col- 

 lector: Total length, 200; hind foot, 30. 'the measurements of two 

 topotypes, c? and 9 , were exactly the same. Skullof type: Total length, 

 4.1; basal length, 38; nasals, II: zygomatic breadth, 21; mastoid breadth, 

 20.5; alveolar length of upper molar -cries, 8. 



Specimens • camined. Three, all from the type locality. 



Sorex obscurus neomexicanus subsp. nov. 

 Type from Cloudcroft, New Mexico (alt. 9000 feet), in the Sacramento 

 Mountains. No. loo. 440, d" 1 ad., I'. S. National Museum, Biological Sur- 

 vey Collection. Collected by Vernon Bailey, May 29, L900. Original 

 number, 7383. 



