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The western chorus frog (''Pseudacris triseriata''), also known as striped chorus frog,〔 or midland chorus frog〔 is a species of frog found in Canada and the United States. == Description == Western chorus frogs are small , smooth skinned, and greenish-grey, reddish, olive, or brown in color. Differences in color can occur locally and should not be confused for range-specific populations. Typically, these frogs have three dark-brown or grey stripes which extend down the entire dorsal side. The dorsal stripes can be broken up, reduced, or even absent in certain specimens. The white or cream-colored underside or ventral side of the frog typically has dark, scattered flecks. A single white stripe runs along the upper lip, and a heavy dark stripe runs across the eye and along each side from the snout to the leg. A dark triangular spot on the head may also be seen in some individuals. These frogs have small, round toes without pads and very little webbing between each toe. Typically, males are smaller than females, and can be told apart from the females by their yellow vocal sacs when calling. When not calling, this sac looks like a dark, loose flap of skin beneath the throat. Tadpoles of the western chorus frog have gray or brown bodies. Their body shape is round with clear tail fins and dark flecks. The intestinal coil reportedly can be seen through the belly skin if closely observed. Their lips are black. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Western chorus frog」の詳細全文を読む スポンサード リンク
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