EXPLANATION OF PLATE XCI. 



TURBINELLA ALABAMENSIS (Gabb), p. 768 



1-2. Lateral and vertical views of the type of T. rcrticalis Whitf. 



Navesink marl; Upper b'rcchold. 

 3. Lateral view of an internal cast preserving the anterior canal. 



Navesink marl; Atlantic Highlands (108). 

 4-5. Vertical and lateral views of a plaster cast from a natural 



mould of the exterior. 

 6. Internal cast of the same individual. 



IVenonah sand; near Craivfords Corner, (126*). 



CARICELLA PLICATA Whitfield, p. 772 



7-8. Two lateral views of the type specimen. 

 Manasquan marl, Farmingdalc. 



VASUM CONOIDES Whitfield, p. 773 



9-10. Two lateral views of the type specimen. 

 Navesink marl; Walnford. 



TURBINELLA SUBCONICA Gabb, p. 771 



11-12. Two lateral views of the type specimen. 



Navesink marl; Monmouth County. 



VOLUTODERMA BIPLICATA (Gabb) , p. 775 



13-14. Two lateral views of a large internal cast. 



IVenonah sand; near Crazvfords Corner, (126*). 

 15-16. Two lateral views of a small internal cast. 

 17. Lateral view of a large, imperfect internal cast. 



Merchantville clay-marl; Lenola, (163). 



VOLUTODERMA WOOLMANI Whitfield, p. 774 



18-19. Lateral views of two fragmentary internal casts. 

 Merchantville clay-marl; Lenola, (/6\?). 



VOLUTODERMA OVATA Whitfield p. 776 



20-21. Two lateral views of a large internal cast. 



Navesink marl; Atlantic Highlands (108). 



VOLUTODERMA JAMESBURGENSIS n. sp., p. 777 



22. Lateral view of a squeeze from a natural mould. 



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



Merchantville clay-marl; near famesburg, (140). 



1066 



