. A biological survey of Colorado. Natural history Colorado; Mammals Colorado; Trees Colorado. 100 NORTH AMERICAN FAUNA. [No. S3. was inkoii in a tiilo marsh alon^" Mcl^lnu) Circ^k, ami 1 havo c^lscwluM'e observed that marshes are mueh rreciueiiled by this s])eeies. A house mouse was killed iu one ol' tbe builcbiigs at Gaume's raneh, northwestern Baea County, a region where ranebes are many miles apart. Another was eaugbt in tlie barn at tbe ^leihmo Si)rini2;s raucJi, near tbe San Luis Lakes. Prof. Lantz found them abundant near lligbee, iii soutbeastern Otero County. White-footed mice of


. A biological survey of Colorado. Natural history Colorado; Mammals Colorado; Trees Colorado. 100 NORTH AMERICAN FAUNA. [No. S3. was inkoii in a tiilo marsh alon^" Mcl^lnu) Circ^k, ami 1 havo c^lscwluM'e observed that marshes are mueh rreciueiiled by this s])eeies. A house mouse was killed iu one ol' tbe builcbiigs at Gaume's raneh, northwestern Baea County, a region where ranebes are many miles apart. Another was eaugbt in tlie barn at tbe ^leihmo Si)rini2;s raucJi, near tbe San Luis Lakes. Prof. Lantz found them abundant near lligbee, iii soutbeastern Otero County. White-footed mice of several speeies take tbe pbiee of house mice over mueb of the timbered and canyon country, and hi many pbices are associated witb the latter about buildings and sheds. Onychomys leucogaster pallescens Merriam. Pale Grasshopper Mouse. The large pale grasshopper mouse is generally distributed over tlie I'pper Sonoran ])lains and deserts on l)ot]i sides of the Con-. \OA/yvmAiyS L£UCOGAST£PBP£\//CAUDUS. PALL£SC£/^S. Fig. 10.—Ublriljulion in Colorado of grasshopper mice {Oivjchomys I. brecicaudus and 0. /. ). tinental Divide, except in tbe nortbw^est corner of the State, where the smaller 0. hrevicavdus replaces it. (See fig. 10.) Speci- mens from the southwestern desert region and also from the San Luis Valley are larger and paler than those from the northeastern plains, where an approach to 0. leucogaster is suggested by the darker color. Tliis species apparently occupies a considei able area in western Montezuma, Dolores, San Miguel, Montrose, and ^Mesa Counties, but its range is imperfectly worked out. The distribution in the lower. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cary, Merritt, 1880-1918; United States. Bureau of Biological Survey. Washington : Government Printing Offi


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