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; Sayreville. 



CORBULA LORILLARDENSIS n. sp., P- 637 



9-1 1. Views of three single valves. 

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



Woodbury clay; Lorillard, (102). 



CORBULA BISULCATA Conrad, p. 638 



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



mould, partially restored. 

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

 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). 



Cliffwood 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). 



Merchantville clay-marl; near Jamesburg, (139). 



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



Woodbury clay; Haddonfield, (183). 

 CORBULA CLIFF WOODEN sis 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, (xs). 



Marshalltown clay-marl; near Swedesboro, (/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). 



Cliffwood clay; Cliffwood Point, (185). 



