EXPLANATION OF PLATE XXIlL 



Caricella plicata Whitf. (p. 182). 

 Pigs. 1,2. Views of the opposite sides of tlie specimen described. 



Pledrotoma Farmingdalensis Whitf. (p. 185). 

 3, 4. Two views of the type specimen showing all there is preserved of the cast. 



Tdrritblla pumilla Gabb (p. 187). 

 5, 6. Two views of a specimen presumed to be of this species. Acad. Nat. Sci., Fhila. 



Pleurotomakia Brittoni Whitf. (p. 188). 

 7-9. Lateral, vertical, and basal views of the only cast observed. 



ROSTELLITES BICONICUS Whitf. (p. 183). 



10, 11. Two views of a large characteristic specimen, showing the features of the aperture very 

 distinctly. 



Bulla coNicfA Whitf. (p. 189). 

 12, 13. Two views of a very perfect cast from Shark River. Collection of Columbia College. 



Volutoderma intermedia Whitf. (p. 184). 



14. Front view of the best cast observed, showing the three plications. 



15. Outline of a fragment showing the imprint of the exterior surface on the inside of the 



outer volution. 



EOSTELLARIA N0B1LI8 Whitf. (p. 186). 



16, 17. Two views of the cast described. 

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