4 Watson, TJie Sauj'opterygia of tJie WJiitby Museum. 



Anterior end of anterior nares 20 cms. behind anterior 

 end of snout. 



Bar between nares 4-5 cms. wide. 



Posterior end of orbit 35 cms. behind snout. 



Frontal width 7 cms. 



Length of orbit 9 cms. 



Width of articular facet of the articulars 8 cms. 



Antero-posterior length of articular facet 4 cms. 



Length of post-articular process 5 cms. 



Vertebral Colniiin. 



Cervicals. The atlas and axis are completely con- 

 cealed by matrix, but the rest of the cervicals are fairly 

 well shewn ; they are, however, set in plaster so as to 

 conceal the lower parts of the centra. 



Fig. 2. '''■ Pksiosanriis'''' propinqnus 4th cervical, liglit lateral 

 and dorsal aspects, x 2- 



4th Cervical. This bone is rather well exposed, and 

 is quite typical of the anterior part of the neck. 



The centrum is 25 cms. long and 6 cms. wide, the 

 height cannot be seen. Only one rib facet is visible, but 

 a second is probably concealed by the plaster setting. 



The ends of the centra bear a ring of roughened 

 ornament. 



The neural arch is very high, the pedicels being tall 



