INTRODUCTION.

 After examining the molluscan fauna from the Pliocene calcareous marls in the vicinity of Deband, Florida,' a more extensive comparison of this fauna and other faunas in northeastern Florida with that at the type locality of the Nashua marl seemed desirable.
 At some of the localities considered in this paper the number of representative forms is small and at other localities many of the fossils are broken. It is hoped that future work in this field may supplement these collections.
 Although some of the results obtained are not altogether conclusive, it is believed that an advance is made in the study of the relationship of the molluscan faunas of this part of the State.














 MFa. State Geol. Survey, 11th Ann. Rept., pp. 111-123, 1918.