EXPLANATION OF PLATE XXXVII. 



PINNA LAQUEATA Conrad p. 419 



i. Lateral view of a right valve, incomplete anteriorly. (After 

 Whitfield.) 



PINNA ROSTRIFORMIS Morton p. 420 



2-3. Lateral views of two imperfect left valves. (After Whit- 

 field.) 



Vincentoiim limesand; Timber Creek. 



GERVILLIOPSIS ENSIFORMIS (Conrad), p. 421 



4. View of an incomplete internal cast from the right side. 



Navesink marl; near Freehold, (133). 



5. A similar view of a smaller specimen. 



Navesink marl; Mullica Hill, (169). 



956 



