PLATE XXII. 



Tene A PiNGUis Conrad ^^3 



Fig. 1. Leffc view of an internal cast. 



2. Cardinal view of the same. 



3. View of the hinge, enlarged twice, from Mr. Conrad's type, Haddonfield, N. J. 



DosiNiA Gabbi Whitfield j^j 



Fig. 4. Left view of a cast, showing all the features recognized. 

 5. Cardinal A'iew of the same. 



Aphrodina Tippana Conrad 254 



Fig. 6. Cast of a large right valve. Deep cut, Holmdel and Keyport Turnpike. 

 7. A smaller left valve from Marlborough, N. J. 



C Ai.LiSTA Delawarensis Gabb jr^3 



Figs. 8 and 9. Views of what is supposed to be Mr. Gabb's type of the species. 



10. View of a young specimen, retaining the shell, from nodule in Lower Marls at 

 Holmdel. 



Cyprimeria depressa Conrad j^g 



Fig. 11. Interior of a shell from Haddontield. One of Conrad's originals. 



12. Exterior of the same. 



13. View of a cast from Freehold ; a shorter form. 



Cyprimeria Heilprini Whitfield ^^ q 



Figs. 14 and 15. Views of the type specimens. Collection of Academy of Natural Sciences. 



Cyprimeria excavata Morton _ .- |-:q 



Figs. 16 and 17. Views of a very imperfect cast referred to this species. Freehold, N. J. 



Cyprimeria spissa Conrad ^ .. ^ 



Fig. 18. View of a cast of a right valve referrt d to this species. 



Cyprimeria densata Conrad i -- 



Id/ 



big. 19. View of a specimen from Freehold, N. J., retaining the shell in part. 

 20 and 21. Views of Mr. Conrad's type specimen. 



312 



