EXPLANATION OF PLATE LXXII. 



CORBULA MANLEYI n. Sp., p. 636 



1-3. Right, left and cardinal views of a plaster cast from a natural 



mould of this species. 

 4-6. Right, left and cardinal views of the internal cast of the same 



specimen. 



7. The right side of the plaster cast, (x2). 



8. The left side of the internal cast, (x2). 



Raritan formation; Sayrcville. 



CORBULA LORILLARDENSIS n. sp., p. 637 



9-11. Views of three single valves. 

 Q 12-14. Views of the same, (x2). 



Woodbury clay; Lorillard, (102). 



CORBULA BISULCATA Conrad p. 638 



y 15-16. Cardinal and lateral views of a plaster cast from a ^natural 



mould, partially restored. 

 17. Lateral view of the same, (x2). 

 18-19. Lateral and cardinal views of an internal cast. 

 20-22. Lateral and cardinal views of an internal cast, and a lateral 

 view of the same, (x2). 



Cliff wood clay; Cliffwood Point, (105). 

 CORBULA FOULKEI Lea, p. 640 



23. Lateral view of an internal cast. 



24. The same, (x2). 



25. Lateral view of a plaster cast from the natural mould of the 



exterior of the same individual. 

 26: The same, (x2). 



Woodbury clay; near Matawan, (/oj). 

 CORBULA CRASSIPLICA Gabb, p. 641 



27. Lateral view of a squeeze from a natural mould, (x2). 



Mcrchantville clay-marl; near Jamesburg, (/jp). 



28. Lateral view of a right valve, (x3). (After Whitfield.) 



Woodbury clay; Haddonfield, (183). 

 CORBULA CLIFFWOODENSIS n. sp., p. 643 



29. Lateral view of the internal cast of a right valve. 



30. The same, (x2). 



31. Lateral view of the internal cast of a right valve. 



32. The same, (x2). 



Cliffwood clay; Cliffwood Point, (185). 

 CORBULA SWEDESBOROENSIS n. sp., p. 644 



33. Lateral view of the type specimen. 



34. The same, (x2). 



Marshalltown 'clay-marl; near Swcdesboro, (/77). 



35. Lateral view of the internal cast of a single valve. 



Cliffwood clay; near Matawan (189). 



CORBULA JERSEYENSIS n. sp., p. 644 



37-38. Lateral views of two internal casts. 



Cliffwood clay; Cliffwood Point, (185). 



39. Lateral view of the internal cast of a left valve. 



40. The same, (x2). 



Cliffivood clay; Cliffwood Point, (185). 

 1028 



