PLEIOCENE FOSSILS. 91 



TELLINA P L I T A . — S a y . 

 Plate XXII. Fig. 6. 



Tellina polita, Say, Jour. Ac. Nat. Sci., Vol. 2, p. 276. 



T. testa transverse sub-triangulari, minute et concentrice rugosa; margine buccali ventraU 

 breviore; margine basali subrecta. 



Description. Shell transversely sub-triangular, minutely and concentrically wrinkled; 

 buccal margin rather, shorter than ventral ; basal margin nearly rectilinear from behind the 

 middle to the anterior termination. 



Plate XXII. Fig. 6, Interior and exterior of fossil shell, natural size. 



Locality. Waccamaw. 



Museum, College of Charleston. 



The genus Tellina commenced its existence in the ocean of the Cretaceous period, is 

 found in the Tertiary, and is still an inhabitant of the seas of temperate and warm 

 climates. 



PSAMMOCOLA.— Blain. 



The genus Psammocola commenced its existence in the seas of the Cretaceous period. 



PSAMMOCOLA PLEIOOENA. — {New Species.) 



Plate XXII. Fig. 8. 



P. testa oblongata, inequilaterali, convexa, striata, radiatim costata, costis multis, juxta 

 umbones simplicibus, ad margines sulcatis vel complanatis; striis numerosis et incrementi 

 lineis irregularibus concentricis lamellosisque, interruptis; margine buccali obtuse rotundata; 

 margine anali sub-angulata, sub-compressa; umbonibus incurvis, approximatis. 



Description. Shell oblong, inequilateral, convex, striate, radiately ribbed; ribs numer- 

 ous, near the umbones simple and distinct, but towards the margins channelled or 

 flattened; strife numerous, interrupted with irregular concentric laminated lines of 

 24 



