. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 572 Dr. C W. Andrews on a Theropodous process unites with the pubis in a slightly convex surface. Behind tlie acetabulum the ilium unites with the ischium, but the details of the suture are not clear. The posterior fragment of the right ilium () narrows gradually towards its posterior end, which is gently convex, being some- what thickened and roughened for the attachment of a muscle, probably the ilio-caudal. The outer surface is concave from above downwards, while on the
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 572 Dr. C W. Andrews on a Theropodous process unites with the pubis in a slightly convex surface. Behind tlie acetabulum the ilium unites with the ischium, but the details of the suture are not clear. The posterior fragment of the right ilium () narrows gradually towards its posterior end, which is gently convex, being some- what thickened and roughened for the attachment of a muscle, probably the ilio-caudal. The outer surface is concave from above downwards, while on the inner face there is a thickened and downwardly-reflected flange running down from the postero-superior angle to the base of the ischial process. The inner face of this flange is roughened, and no doubt united with the posterior part of the sacrum. Fiff. Pelvis of Sarcosaurtis ivoodi from the left side, partly restored from the rift'lit side. | nat. size, acet., acetabuluiu; , anterior lobe of ilium; f., foramen in (P) ilium; isc, ischium; , obturator notch; p-L, posterior lobe of ilium; , preacetabular notcli; , pubic process of ilium ; pu., pubis; s., suture between ilium and pubis. The Pubis (fig. 1).—The proximal ends of both pubes are preserved, that of the right side being the more complete. This bone, which seems to have been larger in proportion to the ilium than in later forms, unites to the pubic process of the ilium in a slightly concave suture ; below this it bears on its posterior face a triangular surface, which forms the anterior wall of the acetabulum {acet.) ; beneath tiiis again there is a short process, separated from the acetabulum by a distinct notch and curving Ijackwards to unite with the pubic process of the ischium in a flat suture, triangular in. 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 per
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