42 
FLORIDA GEOLOGICAL SURVEY-I5TH ANNUAL REPORT 
Cerithium muscarum Say (?) 
Crepidula plana Say. 
Crepidula fornicata (Linne). 
Nucula proxima Say. 
Area ponderosa Say. 
Area campechensis Dillwyn. 
Area subsinuata Conrad. 
Area transversa Say (2 forms). 
Ostrea virginica Gmelin. 
Plicatula gibbosa Lamarck. 
Anomia simplex Orbigny. 
Venericardia perplana Conrad. 
Venericardia tridentata Say. 
Chione cancellata Linne. 
Chione grus (Holmes). 
Anomalocardia caloosana Dali. 
Venus campechiensis Gmelin. 
Gemma purpurea H. C. Lea. 
Parastarte triquetra Conrad. 
Tellina tampaensis Conrad. 
Semele bellastriata Conrad (?) 
Abra aequalis Say (?) 
Tagelus divisus Spengler. 
Donax variabilis Say. 
Mulinia lateralis, var. corbuloides Reeve. 
Mulinia lateralis, vars. A. and B. 
Rangia cuneata Gray. 
Geologic horizon: Pleistocene. 
Three species, Area campechensis Dillw., Gemma purpurea H. C. 
Lea, and Donax variabilis , appear to be exclusively post-Pliocene. 
Area subsinuata Conrad, hitherto, has been reported only from 
the Pliocene of the Croatan beds, near New Bern, Craven Co., N. C. 
