. Animal life in the Yosemite; an account of the mammals, birds, reptiles, and amphibians in a cross-section of the Sierra Nevada. Zoology. BATTLESNAKE 647 at the end the dry resonant rattle which has given rise to the common name of the reptile. The coloration of rattlesnakes is apt to be quite variable, even in a single locality. Some individuals may be dark, even nearly black, while others are extensively gray, reddish, or yellowish. The rattle of the rattlesnake is a structure which is formed incidentally to the general molt of the outer skin. (See fig. 64). Snakes of all species cast off
. Animal life in the Yosemite; an account of the mammals, birds, reptiles, and amphibians in a cross-section of the Sierra Nevada. Zoology. BATTLESNAKE 647 at the end the dry resonant rattle which has given rise to the common name of the reptile. The coloration of rattlesnakes is apt to be quite variable, even in a single locality. Some individuals may be dark, even nearly black, while others are extensively gray, reddish, or yellowish. The rattle of the rattlesnake is a structure which is formed incidentally to the general molt of the outer skin. (See fig. 64). Snakes of all species cast off the outer, worn layer of the skin one or more times each year. In the garter or gopher snakes, in which the tail is tapered to the end, the 'slough' usually comes away in a single piece, being turned inside out as the snake glides out of it, and such cast skins are to be found from. Button End of Tail. 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 Grinnell, Joseph, 1877-1939; Storer, Tracy Irwin, 1889- joint author. Berkeley, Calif. , University of California Press
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Keywords: ., bookauthorgr, bookcentury1900, bookdecade1920, booksubjectzoology
