. The biology of the frog. Frogs. 22 THE BIOLOGY OF THE FROG can be mentioned here. Full descriptions of the species may be found in Cope's "Batrachia of North America/' and in Miss Dickerson's "Frog ; Rana catesbiana, the bullfrog.—This is by far the largest cf North American species of Rana, and one of the largest of the genus. It attains a length of five to eight inches. It is widely distributed throughout the United States, east of the Rocky Mountains, from Mexico to Canada. The. Fig. 12.—Rana catesbiana, the bullfrog. color of the upper surface varies from green to oli
. The biology of the frog. Frogs. 22 THE BIOLOGY OF THE FROG can be mentioned here. Full descriptions of the species may be found in Cope's "Batrachia of North America/' and in Miss Dickerson's "Frog ; Rana catesbiana, the bullfrog.—This is by far the largest cf North American species of Rana, and one of the largest of the genus. It attains a length of five to eight inches. It is widely distributed throughout the United States, east of the Rocky Mountains, from Mexico to Canada. The. Fig. 12.—Rana catesbiana, the bullfrog. color of the upper surface varies from green to olive-brown, marked with small darker spots. The head is usually bright green, and the legs are marked with blotches of darker color. The tympanum or eardrum is very large, especially in the male. The toes of the hind feet are broadly webbed, the web extending to the tip of the fourth toe. This species rarely goes far from the water. It is usually found either partly immersed in the water or sitting on the bank of some pond or stream. It makes for the water very. 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 Holmes, Samuel J. (Samuel Jackson), 1868-. New York : The Macmillan company
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Keywords: ., bookauthorholmessamueljsamuelja, bookcentury1900, bookdecade1920
