OSTEEID^E. 11 



seas, where it exists at all depths, generally within the limits of tide water, but frequently 

 within deeper soundings." — T. 6? H. 



Plate II. Fig. 9a., Exterior of lower valve. 



Locality. Charleston; Simmons', Young's Island. 



Museum, College of Charleston; Cabinet F. S. II. 



A N M I A EPHIPPIUM. 

 Plate II. Pia. 11. 



Anomia Ephippium, Linn, Syst. Nat., 1150. 



Anomia Ephippium, Conrad, Foss. Ter. Form., p. 75, pi. 43, fig. 4. 



Anomia Ephippium, Ravenel, Cat. Coll. Shells, p. 8. 



Anomia Ephippium, Gould, Invert. Mass., p. 138. 



Anomia Ephippium, De Kay, Zool. New-York, Art. Mollusca, p. 168. 



Anomia Ephippium, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xxii. 



Anomia Ephippium, Tuomey <$• Holmes, Pleiocene Foss. So. Ca., p. 18, pi. 5, fig. 4 and 5. 



Description. Shell translucent, orbicular, irregular, undulating, concentrically striated 

 or smooth; lower valve fragile; opening for the bysus, large, oval. 



This is an abundant shell of the Pleiocene and Post-Pleiocene periods; the upper, or 

 left valve, is very common upon the sea-beaches of the coast ; the lower valve, through 

 which the plug of cartilage passes, is seldom obtained in a fossil state. The recent shell 

 is found attached to drift wood, shells and rocks. 



Plate II. Fig. 11, Left valve, natural size. 



Locality. Simmons', Wadmalaw Sound; Abbapoola Creek, John's Island. 



Museum, College of Charleston; Cabinet F. S. H. 



OSTREA FUND AT A. 

 Plate II. Fig. 10. 



Ostrea fundata, (Say,) Ravenel, Cat. Coll. Shells, p. 8. 



Ostrea fundata, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xxii. 



Description. Shell parasitic, irregular, sub-orbicular, sometimes angular; surface 



