EXPLANATION OF PLATE LXXXVI. 



N ASSA GLOBOSA Gabb, P- 738 



1. Lateral view of a somewhat' crushed internal cast. 



Wenonah sand; near Marlboro, (130). 



PYROPSIS RICHARDSONI (Tuomey), p. 739 



2. Lateral view of a small internal cast. 



Navesink marl; Atlantic Highlands, (108). 



3-4. Lateral and vertical views of a plaster cast from a natural 

 mould partially showing the external characters of the 

 shell. 

 5. Lateral view of the internal cast of the same individual. 



Merchantville clay-marl; near Matawan, (/o/). 



PYROPSIS PYRULOIDEA (Gabb), p. 742 



6-7. Two lateral views of the type specimen. 



Navesink marl; Burlington County. 



PYROPSIS SEPTEMLIRATA Gabb, p. 744 



8-10. Vertical and two lateral views of an internal cast, illustrated 

 as P. pcrlata by Whitfield. 



Navesink marl; Freehold. 



PYROPSIS PLANIMAKGINATA (Whitfield), p. 745 



11-14. Three lateral views and one vertical view of the type specimen. 

 Navesink marl; Crosswicks Creek. 



1056 



