TAB. XXVII. 



Ichthyosaurus. 

 Fig. 



1. Ichthyosaurus platyodon, skeleton, dorsal aspect, much reduced. 



2. Skull of do., side view, ^ nat. size. 



3. Parts of thorax and scapular arch of do., ^ nat. size. 



4. Skeleton, minus skull, of Ichthyosaurus lonchiodon , much reduced. 



5. Skull of do., side view, yg- nat. size. 



6. Four trunk-vertebra of do., side view, -^ nat. size. 



7. Right coracoid of do, outer view, \ nat. size. 



