EXPLANATION OF PLATE LXXXV. 9 



PERISSOLAX DUBIA (Gabb), p. 730 



i. Lateral view of an internal cast. 



Navesink marl; Mullica Hill. 

 2-3. Two lateral views of an internal cast. 



Navesink marl; near Crawfords Corner, (I26 1 ). 

 4-5. Two lateral views of one of the types of Tritonidca obesa 

 Whitf. 



Navesink marl; Crosswicks Creek. 



PERISSOLAX TRIVOLVA Gabb, p. 731 



6. Lateral view of the type specimen. 



Vinccntown limcsand, Timber Creek. 



PYRIFUSUS MEEKI Whitfield, p. 732 



7-8. Two lateral views of a nearly perfect internal cast. One of 

 the type specimens. 



Navesink marl; Mullica Hill. 



PYRIFUSUS MULLICAENSIS (Gabb), p. 733 



9. Lateral view of an internal cast, 

 lo-n. Two lateral views of another internal cast. 



Navesink marl; Mullica Hill. 



12-13. Two lateral views of the type specimen of Pyrifusus cunciis 

 Whitf. 



Navesink marl; Freehold. 



14-15. Twp lateral views of the type specimen of Brifachya paludi- 

 naformis Whitf. 



Navesink marl; Crosswicks Creek. 



PYRIFUSUS ERRATICUS Whitfield, p. 736 



16. Lateral view of an internal cast. 



Cliff wood clay; Cliff wood Point, (105). 



PYRIFUSUS M ACFARLANDI Whitfield, p. 735 



17. Lateral view of an internal cast. 



Navesink marl; Mullica Hill, (169). 



HERCORH YNCHUS JERSEYENSIS n. sp., p. 737 



18. Plaster cast of a natural mould of the exterior of this species. 

 19-20. Two lateral views of the internal cast of the same individual. 

 21-22. Two lateral views of another internal cast. 



Cliff wood clay; Cliff ivood Point, (185). 



1054 



