38 
FLORIDA GEOLOGICAL SURVEY—I5TH ANNUAL REPORT 
5008.—East side of the St. Johns River, five miles below the Sanford 
railroad bridge. (See Matson, G. C., and Clapp, F. G., 2nd Ann. 
Rep’t of Fla. Geol. Survey, 1909; p. 132.) 
Approved or Changed. 
Acteocina canaliculata (Say). 
Olivella mutica (Say). 
Busycon pyrum (Dillwyn). 
Busycon perversum (Linne). 
Not found. 
Alectrion vibex (Say). 
Crepidula fornicata Say (?) (yo.). 
Nucula proxima Say. 
Area, near A. campyla Dali. 
Mytilus venustus Linne. 
Phacoides multilineatus T. and H. 
Cardium cedalium Dali (not typical, ap¬ 
proaching C. muricatum Linne. 
Laevicardium mortoni Conrad (?) 
Anomalocardia caloosana Dali (?) 
(young). 
Venus campechiensis Gmel. 
Chione cancellata Linne. 
Tellina declivis Conrad. 
Corbula barrattiana C. B. Ad’s. 
Mulinia lateralis, var. corbuloides Rve. 
Pholas costata Lamarck. 
Original. 
Tornatina canaliculata Say. 
Olivella mutica Say. 
Fulgur pyrum Dillwyn. 
Fulgur perversum Linne. 
Nassa elevata Say. 
Nassa vibex Say. 
Crepidula fornicata Say. 
Nucula proxima Say. 
Area transversa Say. 
Mytilus venustus Linn. 
Phacoides multilineatus T. and H. 
Cardium cedalium Dali. 
Laevicardium serratum Linn. 
Anomalocardia caloosana Dali. 
Venus campechiensis Gmel. 
Chione cancellata Linn. 
Tellina declivis Conrad. 
Corbula contracta Say. 
Mulinia lateralis Say. 
Pholas costata Lam. 
Other species from this station not originally reported in above list 
are: 
Alectrion acuta (Say). This may be the same form as listed as Nassa elevata Say. 
Venericardia tridentata Say. 
Parastarte triquetra Conrad. 
Donax variabilis Say. 
Gemma purpurea H. C. Lea. 
Geologic horizon given with the original report: “Probably 
Pliocene.” 
Geologic horizon believed to be in this report: Upper Pliocene or 
lowest Pleistocene. 
The two species, Donax variabilis and Gemma purpurea , as noted, 
were not listed in the original report. The two species appear to be 
exclusively post-Pliocene. If they came from the same stratum as the 
other listed species, the age would indicate post-Pliocene rather than 
Pliocene. 
4866.—Half a mile above A. C. L. R. R. Bridge over St. Johns River, 
Putnam Co., Fla. Vertical cliff three to eight feet above high- 
water level. (See Matson, G. C., and Clapp, F. G., 2nd Ann. 
Rep’t Fla. Geol. Survey, 1909; p. 131.) 
