TAB. XXVI. 



Ichthyosaurus intbrmedius. 



Fig. 



1. Skeleton, from the dorsal aspect, ^ nat size. 



2. Symphysis mandibulae, under view, ^ nat. size. 



Ichthyosaurus communis. 



3. Portion of skeleton, from the ventral aspect, \ nat. size. 



4. Symphysis mandibulae, under view, \ nat. size. 



5. Bones of pelvic arch, left side, \ nat. size. 



