DESCRIPTION of five new fossils. 
51 
Description of five New Fossils, of the Older Plio- 
cene F ormation of Maryland and North Carolina. 
By Wm. Wagner. 
Read January 2d, 1838. 
Pecten Marylandicus. PI. 1 , fig. 1. 
Shell ovate, compressed ; ribs numerous, consist- 
ing of narrow’, nearly smooth strife, disposed in, 
pairs ; interstitial spaces each with a carinated line ; 
ears unequal ; inferior valve very slightly convex ; 
libs similar to those of the opposite valve; inner 
margin of the valve with profoundly elevated lines. 
Locality. Mehering river, North Carolina. This 
Pecten is allied to Pecten Madisonius, Say, but 
can readily be distinguished by its want of broad, 
elevated ribs, and a surface destitute of scales; 
several specimens of Spirorbus nautiloides, Lam.' 
aie attached to the surface of the superior valve. 
Venus inoceriformis. PI. 1, fig. 2. 
Shell oblique, suborbicular, thin and fragile, ven- 
liicose ; disks with unequal, concentric undulations, 
forming prominent angulated carime; concentric 
stiise numerous, prominent; beaks prominent; no 
distinct lunule ; cardinal teeth lamellar. 
Locality. Banks of St. Mary’s river, Maryland, 
his beautiful Venus is very similar in the exterior 
o some species of Inoceramus, which character has 
suggeste the name. One specimen alone has 
