. Fig. 9. Sternum. ( x |.) Fig. 8. Ribs. ( x i.) right side bears a facet a little way posteriorly to the first there is no corresponding one on the left. The external surface of the bone is convex and the internal concave. Anteriorly, the second sternal element has a median notch, on the right side of which the anterior margin is a little way behind that on the left side. This asymmetry is repeated on the posterior margin, in which, however, the notch is wanting. The lateral margins are shallowly concave, and at the antero- and postero-lateral corners are facets for the appropriate sternal ri
. Fig. 9. Sternum. ( x |.) Fig. 8. Ribs. ( x i.) right side bears a facet a little way posteriorly to the first there is no corresponding one on the left. The external surface of the bone is convex and the internal concave. Anteriorly, the second sternal element has a median notch, on the right side of which the anterior margin is a little way behind that on the left side. This asymmetry is repeated on the posterior margin, in which, however, the notch is wanting. The lateral margins are shallowly concave, and at the antero- and postero-lateral corners are facets for the appropriate sternal ribs.
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