Page:The Osteology of the Reptiles.pdf/156

138 the whole under side of the pectoral region, meeting in a firm median symphysis; in most plesiosaurs throughout their lengths, but in the Elasmosauridae broadly separated posteriorly by a deep emargination, apparently a specialization (Fig. 110).



In most reptiles the single coracoid is fused with the scapula in