CONTENTS. 



Ill 



Pterodnctylus (sp. iuc.) atlas and axis 



cervical vertebrae 

 caudal vertebrae 

 sternum 

 humerus 

 carpal bones 

 ungual phalanx 



Okder— SAUROPTERYGIA.* 



Polyplychodon interruptus . 



„ ,, cranium and teeth 



„ „ cervical vertebrae 



,, „ atlas and axis 



Plesiosaurus planus 



„ ,, vertebral centrum . 



Plesiosaurus Bernard] 



„ „ cervical vertebrae 



Plesiosaurus neocomiensis . 



„ „ cervical vertebrae 



Plesiosaurus latispinus 



Sup. III. Page 6 



« 



13 



17 

 19 



20 



3! 



22 



24 



2 



» 



7 



» 

 11 



}> 



14 



Sup. IV 



cervical and dorsal vertebrae 

 ilium and coracoid 



* The Enaliosawia of Conybeare were divided into two orders, ' Sauropteiygia ' and ' Ichthyopte- 

 rygia,' in a "Memoir on the Classification of Recent and Fossil Reptilia," in the 'Reports of the British 

 Association,' 1859, on the grounds therein assigned, pp. 159, 160. 



