CIMOLIOSAURUS RICHAHDSOXI. 177 



immediately behind the articulation is 15 inches, the least width 

 across is 20 inches. The length of the scapular-articulation is three 

 inches, looking obliquely and forward, arid lies in front of the 

 ridge. The scapula consists of a plate which is anchylosed to 

 the coracoid, and from which a bone rises and ascends towards the 

 dorsal surface, making an angle of about 50 with the central plate. 

 This plate is Gin. long and 4in. broad. The inner margin, which is 

 thin and concave at the base, is a continuation of the curve of the 

 front border of the coracoid bone. There is no indication of 

 clavicle or inter-clavicle bones. The inner margin of the ascending 

 plate is concave, the outer straight. The coraco-scapular foramen,* 

 one of the differences upon which Professor Seeley forms his 

 genus Murcenosaurus, is not subdivided into two foramina, as is the 

 case with many of this family. This continuous foramen 

 is bounded laterally by the concave inner border of the scapula 

 and posteriorly by the anterior margin of the coracoid. It is 14in. 

 wide from side to side and 4in. from the anterior to the posterior 

 margins. 



PELVIC BONES. The pubes are thin, a small portion only of 

 them is preserved, and there is no indication of the symphysis, this 

 part of the bone being unfortunately lost. The outer margins are 

 compressed from side to side, and are not so deep as those of the 

 coracoid. The length is 18f in. Both the ischia are well preserved. 

 Their length from the median line to the femoral margin is Sin. ; 

 breadth at distal end, 5|in. ; at proximal end, 8Jin. ; at the 

 narrowest part, 2in. The iliac bones are expanded at both 

 extremities, so as to extend over the upper part of the head of 

 the femur. 



HUMERUH. The third part of the proximal end of the humerus 

 is cylyndrical and thick ; it then widens into a broad distal end, 

 shewing an articulate surface. 



* It appears from a complete restoration now made by Mr. Richardson of 

 the pectoral girdle that the coraco-scapular foramen was divided by a 

 median bony bar as is now known to be the case in C, plicalus (Leedsii), of 

 which the original restoration was erroneous, 



