PLEIOCENE FOSSILS. 85 



VENUS LATILIRATA. — Con. 

 Plate XXI. Fig. 12. 



Venus latilirata, Con., Proceed. Ac. Nat. Sci., Vol. 1, p. 28. 

 Venus latilirata, Con., Foss. Ter. For., p. 68, pi. 38, fig. 3. 

 Venus paphia, ham., (fossil.) 



V. testa trigona, sub-cordata, sub-compressa, obliqua, concentrice costata, costis crassissi- 

 mis, crenulatis; lunula ovato-cordata, striata; margine crenulata. 



Description. Shell trigonal, sub-cordate, somewhat compressed^ oblique, concentri- 

 cally ribbed, ribs very thick, flat, crenulated below; lunule ovately cordate, striate; 

 margin crenulated. 



The large, flat, irregular ribs characterise this fossil. The ribs are recurved, and 

 terminate suddenly at the anal side. The ligament area is lanceolate and deep. 



Plate XXL Fig. 12, Natural size, 



Locality. Waccamaw. 



Museum, College of Charleston. 



VENUS T R I D A C N I D E S . — C o n. 

 Plate XXII. Fig. 1. 



Cyprinia tridacnoides, Lam., An. sans. Ver., Vol. 5, p. 5f>& S~&~/ 

 Venus diformis, Sag, Jour. Ac. Nat. Sci., Vol. 4, p. 148, pi. 12, fig.' 2. 

 Venus tridacnoides, Con., Foss. Ter. For., p. 10, pi, 7, fig. 2. 



V. testa ovato-cordata, crassissima, concentrice corrugata, radiatim plicata. 



Description, Shell ovately cordate, very thick, concentrically wrinkled, radiately 

 plaited, 



