. Breviora. . Fig. 4. Cyli)uh-op]tis tiianilatits. A. Anterior view of atlas. B. Side view of axis. ball and socket joint entirely comparable to the joints between vertebrae, posteriorly. (Pig. 5B.) If this be the correct interpretation of the results achieved by the uropeltid - C. maculatus modification, it may reasonably be wondered why the extreme uropeltid condition was found adaptively necessary. C. maculatus has achieved a reasonably good ball and socket joint without losing the odontoid process entirely. A hypothesis may be offered here, for future mechani- cal and functional analysis t
. Breviora. . Fig. 4. Cyli)uh-op]tis tiianilatits. A. Anterior view of atlas. B. Side view of axis. ball and socket joint entirely comparable to the joints between vertebrae, posteriorly. (Pig. 5B.) If this be the correct interpretation of the results achieved by the uropeltid - C. maculatus modification, it may reasonably be wondered why the extreme uropeltid condition was found adaptively necessary. C. maculatus has achieved a reasonably good ball and socket joint without losing the odontoid process entirely. A hypothesis may be offered here, for future mechani- cal and functional analysis to test. The axis of C. maculatus even with some reduction of the odontoid is much longer than. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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