120 FLORIDA GEOLOGICAL SURVEY ELEVENTH ANNUAL REPORT. 
AGE OF THE FAUNA NEAR DELAND. 
Chione cancel! ata Linnaeus is not present. It is a questionable 
Miocene species according to Doctor Dali. (Wagner Inst. Sci., 
vol. Ill, pt. 6, p. 1291). This species is also not represented in the 
collections from near Orange City, but it is represented in those 
from DeLeon Springs, Nashua, and at other localities along the 
St. Johns river. 
The bulk of the fauna consists of Mulinia lateralis Say, vars., 
Area transversa Say, Ostrea sculpturata Conrad, and Corbula in - 
aequalis Say, vars. A. & B. 
Of 58 forms from DeLand, approximately 70% (including 
varieties) are present also in both the Caloosahatchee and Wacca- 
maw Pliocene, but only about 48% are found in the Duplin Miocene 
at Mayesville, S. C. Moreover, there have been certain species 
cited that have not been reported from Florida lower than the 
Pliocene. 
On the other hand, certain species above cited are either not rep- 
resented or sparsely so in the Pliocene of Florida. Some of these, 
however, have been reported from the Pliocene of the Carolinas, 
suggesting a close relationship. 
The beds at DeLand appear to be. of the same geologic horizon 
as those near Orange City, and about the same as that y 2 mi. south 
of DeLeon Springs, whose fauna is listed in this report. Taking 
the fauna as a whole, it suggests a closer relationship to the Pliocene 
than to the known Upper Miocene. 
DESCRIPTIONS OF ONE NEW SPECIES AND TWO NEW SUB- 
SPECIES. 
■ EPITONIUM DELANDtNSE MANSFIELD, NEW SPECIES. 
Fig. 9, No. 1. 
Shell elongate, slender, gradually tapering, with seven (exclud- 
ing the lost nucleus) well rounded, close-set whorls; suture mod- 
erately deep and concealed; varices about ten in number, thin and 
slightly reflected on the earlier whorls, but heavier, completely 
reflected and rounded on the later whorls, the posterior ends of 
these varices on each whorl twist toward the following varices at the 
suture, and, as a rule, overlap those of the preceding; varices extend 
diagonally across the whorl, and when followed up the spire make 
