110 Prof. H. G. Seeley on the 



then the ischium must have been directed backward, so that 

 its posterior border was inclined at an angle of about 45°. 

 Tlie subacetabular process, which I have described, at 

 2^ inches below the articular surface was directed inward, so 

 as to enclose a pelvic basin, as in other Saurischia. 



Pubis. (Fig. 6.) 



The hind bone of the pelvis (fig. 6) is represented in the 

 College of Surgeons Museum by several specimens, some of 

 which have hitherto escaped attention, and remain as originally 

 received, without numbers. Nos. 351 and 352 are the 

 proximal extremities of the pubic bone, showing the articular 

 surfaces. The notch beneath the acetabular margin is mor- 

 phologically the remains of the foramen in the pubic bone of 

 Belodon, which appears to have become modified in a way 

 that can only be compared with the condition in Zanclodon 



Fig. 6. 



Acetabular Iliac 

 surface, surface. 



Obturator notch 



Anterior edge. 



Distal articular surface. 



Pubis, inner side. ^ nat. size. Restored from three fragments. 



and Staganolepis. In the drawers are preserved the middle 

 portion of the pubis as well as its distal end, so that the bone 

 is now known from all its parts, though these cannot be 

 actually fitted together into a single specimen. This is less 

 im]jortant, since the left pubis of Euskelesaurus figured by 

 Mens. Paul Fischer as a pelvic bone of a Dinosaurian exactly 



