. Animal biology. Biology; Zoology; Physiology. G D Fig. 80. — Turtles. A, Box Tortoise enclosed within carapace and plastron; B, Tortoise-shell Tortoise, Eretmochelys imbricata; C, Snapping Turtle, Chelydra serpentina; D, Mud Turtle, Cinosternum pennsylvanicum. (A from Bamford; B, C, D from Newman, after Lydekker.) bill, or Tortoise-shell, Turtle. Probably the protective shell also, in part, accounts for the fact that the jaws of Turtles and Tor- toises are toothless. Neverthless, many can inflict severe wounds — witness the beaked jaws of the Snapping Turtle. (Fig. 80.) 2. Crocodiles and All
. Animal biology. Biology; Zoology; Physiology. G D Fig. 80. — Turtles. A, Box Tortoise enclosed within carapace and plastron; B, Tortoise-shell Tortoise, Eretmochelys imbricata; C, Snapping Turtle, Chelydra serpentina; D, Mud Turtle, Cinosternum pennsylvanicum. (A from Bamford; B, C, D from Newman, after Lydekker.) bill, or Tortoise-shell, Turtle. Probably the protective shell also, in part, accounts for the fact that the jaws of Turtles and Tor- toises are toothless. Neverthless, many can inflict severe wounds — witness the beaked jaws of the Snapping Turtle. (Fig. 80.) 2. Crocodiles and Alligators Predatory inhabitants of tropical rivers, Crocodiles and Alli- gators are lizard-like in form with long, gaping jaws well armed with teeth, and with a thick, leathery skin covered with horny scales. Alligator skin has long been popular for the manufacture of leather goods. 3. Lizards and Snakes The Lizards form a highly diversified group, typically with scaly skin and well-developed limbs and long tail. Representative Lizards are the common Iguana, the Gila-monster, and the Horned-. 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 Woodruff, Lorande Loss, 1879-1947. New York The Macmillan company
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