. 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. Fig. 97.—Pekomyscus . californicus insignis. Skull, a, doksal view; 6, C, LATERAL VIEW. VENTKAL view; extends down to the wrist. The feet are white, except that the dark coloring often extends down on the basal third of the dorsum of pes, as in Neotoma micropus. The under surface is sometimes wholly white, but more often with a pe
. 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. Fig. 97.—Pekomyscus . californicus insignis. Skull, a, doksal view; 6, C, LATERAL VIEW. VENTKAL view; extends down to the wrist. The feet are white, except that the dark coloring often extends down on the basal third of the dorsum of pes, as in Neotoma micropus. The under surface is sometimes wholly white, but more often with a pectoral spot of cinnamon or fawn-color on the chest, this, when present, varying from a trace to a large patch. Sometimes there is a colored patch on the throat. The orbital region is dusky. Topo- types (from Dulzura, California) are darker, more mixed with black above in winter than in summer. A young specimen, taken at La Jolla, on the edge of the Pacific, February 10, 1892, by Mr. F. Stephens, was one-third grown at the date of capture. This, the youngest specimen in the series of 40 before me, is smoke-gray above, arid has a faint drab staining on the sides, and the barest indication of the pectoral patch; below white, exhibiting much of the gray basal portion of the hair between the narrowly white tips. Cranial characters.—There are but two skulls of northern P. cali- fomicus in the U. S. National Museum. One of these (No. ffIt) is labeled " Santa Clara," in Professor Baird's handwriting; and the other (No. fffll) was collected at Baird, in northern California, by Mr. C. H. Townsend. These are rather young, and slightly smaller than specimens of P. c. insignis of the same age. The nasals are a Fig. 98.—Pekomyscus cali- fornicus msiGNis. Crown OF molar teeth, a, LOWER series; 6, UPPER Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustra
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