PLATE VIII 



PAGE 



Figs. 1, 2. THORACOSAURUS NEOC^CSARIENSIS (DeKay) 347 



1. Tooth, side view. 



2. Transverse outline of same. 



Matawan formation, Magothy River. 



Figs. 3, 4. HYPOSAURUS ROGERSII Owen 349 



3. Tooth, side view. 



4. Transverse outline of same. 



Monmouth formation, Bohemia Mills. 



Figs. 5-7. LAMXA ELEGANS Agassiz 350 



5. Front view of a worn tooth. X 1. 



6. Inside view of another specimen. X 2. 



7. Side view of a third specimen. X 2. 



Monmouth formation, Seat Pleasant. 



Figs. 8, 9. LAMXA CUSPIDATA Agassiz 351 



8. Inside view. X 1. Matawan formation, C. & D. Canal. 



9. Inside view of a small specimen. X 2. Monmouth formation, 



Brooks' Estate near Seat Pleasant. 



Fig. 10. Side view of proximal part of a fish spine. X 3. Matawan 

 formation, C. & D. Canal. 



Fig. 11. THORACOSAURUS sp 348 



Much worn vertebra, ventral view. Monmouth formation, Prince 

 George's County. 



