. Bulletin - United States National Museum. Science. Fig. 84.—Peromyscus tornillo. Skull, a dorsal view; ''.ventral view; c, lateral view. Description.—A large, stout species; ears and tail well haired, the latter sharply bicolored; soles densely pilose posteriorly. Upper sur- face light broccoli brown; ears and upper side of tail hair brown; feet and under parts pure white. Length, 190 mm.; tail vertebrae, 90; ear above crown, 12; hind foot, 23. Skull, 29 by Cranial and dental characters.—The skull of this mouse (fig. 84) is at once distinguished from all other Texas mice of this genus
. Bulletin - United States National Museum. Science. Fig. 84.—Peromyscus tornillo. Skull, a dorsal view; ''.ventral view; c, lateral view. Description.—A large, stout species; ears and tail well haired, the latter sharply bicolored; soles densely pilose posteriorly. Upper sur- face light broccoli brown; ears and upper side of tail hair brown; feet and under parts pure white. Length, 190 mm.; tail vertebrae, 90; ear above crown, 12; hind foot, 23. Skull, 29 by Cranial and dental characters.—The skull of this mouse (fig. 84) is at once distinguished from all other Texas mice of this genus by its larger size. The animal bears a superficial resemblance to the /\ arizonse, described by Dr. J. A. Allen, from Fairbank on the San Pedro River, in Arizona. Externally it is distinguished from that species by its paler coloration, slightly smaller ears, and stouter body. The largest skulls of P. arizonx equal the average size of P. torniMo, but the teeth are smaller. The shape, however, is different. In both of these species the rostral portion is long and high, this character suf- ficing to distinguish them from any of the forms of P. sonoriensis. The skull of P. tornillo is low and squarish, with the superior profile but slightly arched, and its zygomatic arches standing strongly out in front, as sharp elbows at right angles to the cranial axis. The 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 illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
