. Bulletin of the Department of Geology. Geology. 19!4] Taylor: Aquatic Adaptation in the Carnivora 487 at right angles to the rest of the innominate, the pelvis is rather loosely connected to the sacrum, and the pubic bones (in the adult animal) are not united except by cartilage, the symphyseal line being extremely Figs. 10-12. Pelves of river otter, sea-otter, and seal. X Mi- Fig. 10. Lateral view pelvis of Lutra canadensis. Fig. 11. Lateral view pelvis of Latax lutris nereis. Fig. 12. Lateral view pelvis of Phoca vitulina. Relation of Characters of Pelvis to Aquatic Adaptation.— Wi
. Bulletin of the Department of Geology. Geology. 19!4] Taylor: Aquatic Adaptation in the Carnivora 487 at right angles to the rest of the innominate, the pelvis is rather loosely connected to the sacrum, and the pubic bones (in the adult animal) are not united except by cartilage, the symphyseal line being extremely Figs. 10-12. Pelves of river otter, sea-otter, and seal. X Mi- Fig. 10. Lateral view pelvis of Lutra canadensis. Fig. 11. Lateral view pelvis of Latax lutris nereis. Fig. 12. Lateral view pelvis of Phoca vitulina. Relation of Characters of Pelvis to Aquatic Adaptation.— With the increase in importance of the hind limb as a paddle, the muscles for the adduction and rotation of the femur and extension of the tibia would augment in size. Several of the muscles, as above indicated, are attached to the superior border of the ilium; so the flare of this part of the bone may be readily accounted for as being a natatory 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 University of California, Berkeley. Dept. of Geology. Berkeley : The University Press
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