. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 116 Prof. H. G. Seeley on the ?which wants the inferior callosity, is less compressed from side to side. These remarkably compressed claws are a character of some importance in defining the genus Massospondylus. They distinguish it readily from Euskelesaurus, just as the absence of the proximal externo-anterior trochanter distin- guishes the femur, and the comparatively small size of the head of the bone distinguishes the tibia from that genus, which is also separated by the f
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 116 Prof. H. G. Seeley on the ?which wants the inferior callosity, is less compressed from side to side. These remarkably compressed claws are a character of some importance in defining the genus Massospondylus. They distinguish it readily from Euskelesaurus, just as the absence of the proximal externo-anterior trochanter distin- guishes the femur, and the comparatively small size of the head of the bone distinguishes the tibia from that genus, which is also separated by the form of its distal end. The Humerus. (Fig. 12.) The humerus is a broad flat bone with transversely ex- panded ends and a slender shaft, which, in its general form, approximates towards that figured by Sir Owen as Dicy- nodon tigriceps. There are, however, many approximations in the skeletons of Saurischia and Anomodontia. I infer that the length of the bone did not exceed 11 inches, so that it would be much shorter than the femur. No. 354 (fig. 12) is the proximal end of the right humerus, no. 356 is the distal Fig. 12. Proximal articular Distal articulation. Restoration of the right humerus. -^ nat. size. The middle of the shaft, •which is lost, may be shorter than the dotted space between the two ends. No. 354. end of the right humerus, apparently the same bone. The proximal end of the bone'is transversely expanded, the arti- cular end being directed inward and thickened, as in Palceo- saio-iis, while the radial crest is similarly directed downward; but the shaft of the bone appears to have been relatively wider and the distal end to have been modified by greater transverse expansion. The width of the proximal end, as. 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 London, Taylor and Franci
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