. A textbook in general zoology. Zoology. 238 FROGS, TOADS, AND SALAMANDERS Necturus. —The necturus has a long, rather depressed boel}', reiiun(Ung one of a reptile. It is found in the rivers of the upper Mississippi Valle)' and in the Great Lakes and the lakes of central New York. The bod}' reaches a maxi- miun length of sixteen inches and has two pairs of short legs. It has three bushy red gills on each side of the head and is especially to be noted as an amphibian that retains its gills tlirougJiout life. The siren, or "mud eel," which is found abundantly in the ditches of the Sou
. A textbook in general zoology. Zoology. 238 FROGS, TOADS, AND SALAMANDERS Necturus. —The necturus has a long, rather depressed boel}', reiiun(Ung one of a reptile. It is found in the rivers of the upper Mississippi Valle)' and in the Great Lakes and the lakes of central New York. The bod}' reaches a maxi- miun length of sixteen inches and has two pairs of short legs. It has three bushy red gills on each side of the head and is especially to be noted as an amphibian that retains its gills tlirougJiout life. The siren, or "mud eel," which is found abundantly in the ditches of the South Carolina rice fields and in fact. Fig. 106. —Mud eei or siren : (r, gills. occurs throughout the southern states to Texas, is another amphibian that retains its gills throughout life. It has a dark-colored, cylindrical body about two feet long, but has only one pair of limbs, the front pair (Fig. 166). HeUbender. —The "hellbender," "water dog," or "alli- gator," as it is variously called, is a large amphibian. 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 Herrick, Glenn W. (Glenn Washington), 1870-1965. New York, Cincinnati [etc. ] American Book Company
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