NO. 2057. THE GRASSHOPPER MICE—HOLLISTER. 465 



California: Amargosa, 1; Benton Station, 4 (Univ. of Cal.) ; 

 Bishop, 2; Furnace Creek, Death Valley, 3; Independence, 2 (Univ. 

 of Cal.); Kearsarge Pass, 2 (Univ. of Cal.); Maturango Spring, 

 Argus Mountains, 1; Morans, upper Owens Valley, 1; Panamint 

 Mountains, 4; Panamint Valley, 1; Resting Springs, 4. 



ONYCHOMYS TORRIDUS CLARUS HolUster. 



1913. Onychomys torridus clarus Hollister, Proc. Biol. Soc. Washington, vol. 26, 

 p. 215. December 20. 



Type-locdliiy. — Keeler, east shore of Owens Lake, Inyo County, 

 California. 



• Geographic distribution. — Vicinity of Owens Lake, Coso Mountains, 

 and Salt Wells Valley, Inyo County, California. 



General characters. — Like OnycJiomys torridus longicaudus, but 

 clearer and brighter colored, wdth very little dark streaking from the 

 hair tips. Resembling 0. t. jndcJier, but much more intensely pinkish- 

 cinnamon. Skull as in longicaudus, but mth anterior palatine fora- 

 mina averaging longer, reaching backward fully to line of fronts of 

 first molars. 



Color. — Adult in full winter coat (25081, Keeler, California, Novem- 

 ber 30): Upperparts bright pinkish-cinnamon, palest on nose and 

 head and most intense and glossy on lower back and rump, with very 

 little or no darker admixture from the hair tips. Underfur dark 

 neutral-gray; hairs with subapical band of buff, tipped with deep 

 cinnamon. Ears very thinly haired, narrowly rimmed with brown; 

 woolly tufts at bases creamy-white, comparatively inconspicuous. 

 Nose, cheeks, lower sides, limbs, hands, feet, and underparts w^hite, 

 the underfur narrowly neutral-gray. Tail wliitish, with narrow, 

 indistinct stripe of grayish-brown along upper side for two-thirds its 

 length. Adult in late winter and spring (28199, Hot Springs Valley, 

 California, May 7) : Paler, more pinkish-buff, the dark cinnamon hair 

 tips worn or faded. During the summer moult (28127, Owens Lake, 

 California, May 18) the adults are much darker, with very little bright 

 cinnamon, and with considerable admixture of 'darker color from the 

 gray underfur and the faded, now brownish, hair tips. Juvenile 

 (28195, Olancha, California, June 30) : Indistinguishable in color 

 from the young of pulcher. 



Slcull. — The skull closely resembles that of longicaudus. The pos- 

 terior end of the palate is always without projecting spine; the anterior 

 palatine foramina average longer than in longicaudus, reaching quite 

 to plane of fronts of first molars. (Plate 15.) 



Measurements. — Type and average of six adults from the type 



region, the latter in parentheses: Total length, 143 (141) milHmeters; 



tail vertebrse, 51 (51.4); hind foot, 20.5 (19.7); ear from notch in 



dry skin, 15.7 (14.8). Skull: Condylobasal length, 23.3 (23.0); 



34843°— Proc. N.M.vol.47— 14 30 



