684 



BRITISH FOSSIL REPTILES. 



Fjg. 3. 



Right. 



Left. 



Scapula, Cetiosaurus longus, ^'^th nat. size. (Phps., diagr. xcix, p. 270.) 



saurians, notably of the order Dinosauria, a degree of lacertian structure combined with a 

 crocodihan advance of vertebral and concomitant cardiac and pulmonic structures. 



The scapula of Cetiosaurus (fig. 3) is more crocodilian than lacertian in its 

 proportions. It is an elongate plate, expanded at both ends, but most so and most 

 abruptly at the articulations for the coracoid, <', and humerus, h, h. The more gradual 



