. A manual of elementary zoology . Zoology. FROG: EXTERNAL FEATURES AND BODY-WALL 25 known as the upper arm or brachium, the middle segment as the forearm or antebrachium, and the third segment as the hand or manus. In the hand may be distinguished a wrist or carpus, a palm or metacarpus, and fingers or digits, of which there are only four, that which corresponds to the thumb or pollex of man being absent. The first finger of the male frog bears at the breeding season a rough-skinned swelling, not unlike the ball of the human thumb. In the hinder limb or leg, which is longer than the arm, the Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-elementary-zoology-zoology-frog-external-features-and-body-wall-25-known-as-the-upper-arm-or-brachium-the-middle-segment-as-the-forearm-or-antebrachium-and-the-third-segment-as-the-hand-or-manus-in-the-hand-may-be-distinguished-a-wrist-or-carpus-a-palm-or-metacarpus-and-fingers-or-digits-of-which-there-are-only-four-that-which-corresponds-to-the-thumb-or-pollex-of-man-being-absent-the-first-finger-of-the-male-frog-bears-at-the-breeding-season-a-rough-skinned-swelling-not-unlike-the-ball-of-the-human-thumb-in-the-hinder-limb-or-leg-which-is-longer-than-the-arm-the-image232124262.html
RMRDJ4T6–. A manual of elementary zoology . Zoology. FROG: EXTERNAL FEATURES AND BODY-WALL 25 known as the upper arm or brachium, the middle segment as the forearm or antebrachium, and the third segment as the hand or manus. In the hand may be distinguished a wrist or carpus, a palm or metacarpus, and fingers or digits, of which there are only four, that which corresponds to the thumb or pollex of man being absent. The first finger of the male frog bears at the breeding season a rough-skinned swelling, not unlike the ball of the human thumb. In the hinder limb or leg, which is longer than the arm, the
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