INTRODUCTION. 
After examining the molluscan fauna from the Pliocene calcareous 
marls in the vicinity of DeLand, Florida, 1 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 rep¬ 
resentative 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. 
1 Fla. State Geol. Survey, 11th Ann. Kept., pp. 111-123, 1918. 
