Limb-bones.—Since the humerus is known in Hylœsaurus (?), Omosaurus, and Stegosaurus, it is quite easy to compare the humerus of our new species with that of the other genera mentioned. Whether the shaft is hollow as in Omosaurus or solid as in Stegosaurus, cannot be ascertained without breaking the specimen; the outline of the new humerus is, however, that of Omosaurus, not that of Stegosaurus.