14 



Dinosauria Megalosaurus. 



( Wall-case, The limb-bones always have medullary cavities, and the pectoral 



jNo. 7. (fore-) limb being much shorter than the pelvic (hind-) limb, 



Table-case, it is probable that many of the forms were bipedal in their 



habits, although some of them may have been quadrupedal. In 

 the pelvis (see Fig. 15) the ilium is of great vertical depth, and 

 has a short preacetabular process, while the pubis is directed 



