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Rh from the prepubis of Kritosaurus, in which the upper and lower margins of the blade-like part are approximately parallel. The peculiar union with the ilium has been referred to above.

The postpubis is rather short and ﬂattened towards the extremity. It seems to lie farther from the ischium than usual. The pubic notch is open. The acetabulum is elongated longitudinally.

The only part of either hind limb preserved is the left femur.

Femur (Fig. 9, Plate VI)—This bone is of the ordinary type, and is sufficiently deﬁned by the ﬁgures and the