382 



THE PORTLAND OOLITE PERIOD. 



CHAP. 



the following diagram, which reminds us of the crocodilian 

 structure. 



Diagram CLXXXIV. Steneosaurus palpebrosus. Scale one-tenth of nature. 



Sketch of the shoulder girdle, seen from above and in front. The parts dotted, 

 representing sternum and humerus, are conjectural. 



Diagram CLXXXV. Steneosaurus palpebrosus. Scale one-fifth of nature. 



i. Anterior face of fourth dorsal vertebra. 2. Posterior face of part of the 

 same. 3. Basal view of the same. 4. View of the upper surface of fifth dorsal 

 vertebra. z Anterior ; / posterior zygapophysis ; p and d the articulating surfaces 

 of the ribs. 



