. Elements of zoölogy. Zoology. TRUE REPTILES. 221 by its more elegant shape, hooked bill, and large scales, having, like all the others, long, fin-like nippers. Value.—The scales of the hawkbill are greatly valued in com- merce. Oil from the green turtle's eggs is used in dressing leath- er, and in the manufac- ture of soap. The eggs are not the luxuries gen- erally supposed, and are best when immature, and dried in the Fig. 266.—Hawkbill turtle. In the soft - shelled turtles (Trionychidce) the body is flat and circular, the shell being supple, like rubber or leather. They are carnivoro
. Elements of zoölogy. Zoology. TRUE REPTILES. 221 by its more elegant shape, hooked bill, and large scales, having, like all the others, long, fin-like nippers. Value.—The scales of the hawkbill are greatly valued in com- merce. Oil from the green turtle's eggs is used in dressing leath- er, and in the manufac- ture of soap. The eggs are not the luxuries gen- erally supposed, and are best when immature, and dried in the Fig. 266.—Hawkbill turtle. In the soft - shelled turtles (Trionychidce) the body is flat and circular, the shell being supple, like rubber or leather. They are carnivorous, and one species is common in the St. John's and other rivers of Florida and the South- ern States. The American species are generally one foot in length, but East Indian specimens have been caught weigh- ing two hundred and forty pounds. Allied are the snap- ping-turtles (Chelydidce), forty-four species of which are known. The shell is elevated in front and low behind ; the head large, and jaws strongly hooked, the neck long and snake-like. They attain a length of five feet, and are the most ferocious of their kind. The three American species range from Florida to Canada. The eggs are spherical, and deposited in the ground. The land turtles (Testudinidce) have high, arched shells, a broad sternum, and elevate the body in walking, instead of dragging it along. One hundred and twenty-six species are known. The terrapin, painted, spotted, and box turtles are familiar American forms. The latter are remarkable in that the plastron is composed of two parts, movable upon a single axis, so that the soft parts of the animal can be completely boxed in. They are found in dry woods, and attain a great 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 Holder, Charles Frederick, 1851-1915; Holder, Joseph Bass
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
