. Animal physiology. Physiology, Comparative; Physiology, Comparative. 490 ADAPTATION OF EXTREMITIES FOR SWIMMING. the Seal, which does not depart widely in its general construc- tion from land Quadrupeds, the hind feet are formed upon the. Fig. 227.—Skeleton of Seal. vc, cervical vertebras ; vd, dorsal vertebrae ; vl, lumbar vertebras; vs, sacral vertebrae; vq, caudal vertebrae ; b, pelvis; s, sternum ; li, humerus ; r, radius; ca, carpus ; mc, metacarpus; ph, phalanges; 0, scapula ; c, ribs; /, femur; r, patella; t, tibia ; ta, tarsus ; mt, metatarsus ; ph, phalanges. same plan as the fore;

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. Animal physiology. Physiology, Comparative; Physiology, Comparative. 490 ADAPTATION OF EXTREMITIES FOR SWIMMING. the Seal, which does not depart widely in its general construc- tion from land Quadrupeds, the hind feet are formed upon the. Fig. 227.—Skeleton of Seal. vc, cervical vertebras ; vd, dorsal vertebrae ; vl, lumbar vertebras; vs, sacral vertebrae; vq, caudal vertebrae ; b, pelvis; s, sternum ; li, humerus ; r, radius; ca, carpus ; mc, metacarpus; ph, phalanges; 0, scapula ; c, ribs; /, femur; r, patella; t, tibia ; ta, tarsus ; mt, metatarsus ; ph, phalanges. same plan as the fore; but they are carried far backwards, so as almost to occupy the position of the tail. 665. In the Whale and its allies, on the other hand, the posterior extremities are almost entirely wanting, and the tail is greatly prolonged, and expanded at its extremity. This expan-. 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 Carpenter, William Benjamin, 1813-1885. London : Wm. S. Orr and Co.

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