. Mammals of the Mexican boundary of the United States : a descriptive catalogue of the species of mammals occurring in that region; with a general summary of the natural history, and a list of trees . Mammals; Mammals; Trees; Trees; Natural history; Natural history. MAMMALS OF THE MEXICAN BOUNDARY. 243 rump blended with the coloring of the flank, instead of being sharply defined. The muzzle is abruptly whitish in the northern animal and unicolor with the rest of the head in the southwestern desert form. Besides these differences, the median dark line which divides the white of the rump into t
. Mammals of the Mexican boundary of the United States : a descriptive catalogue of the species of mammals occurring in that region; with a general summary of the natural history, and a list of trees . Mammals; Mammals; Trees; Trees; Natural history; Natural history. MAMMALS OF THE MEXICAN BOUNDARY. 243 rump blended with the coloring of the flank, instead of being sharply defined. The muzzle is abruptly whitish in the northern animal and unicolor with the rest of the head in the southwestern desert form. Besides these differences, the median dark line which divides the white of the rump into two parts is obsolete and noncontinuous in the south- ern specimen, which also has more white on the inner side of the heel, opposite the tibio-tarsal articulation. The summer female of 0. c. gaillardi (No. 21392, ) from the Gila Mountains, Arizona, is much paler than one in corresponding pelage from Wyoming (No. 11891, ) the former differing from the latter to about the same extent that the winter skins just compared differed from each other. The skull of an eld male from the Gila Mountains, Mexican Boundary Line (No. 59907, ), is broader across the fore- head and has a stouter muzzle than an old male collected by. 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 Mearns, Edgar Alexander, 1856-1916. Washington : Govt. Print. Off.
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Keywords: ., bookcentury1900, bookdecade1900, books, booksubjectnaturalhistory
