MARYLAND GEOLOGICAL SURVEY clv 



CrassatelJites melin us ( Conrad ) . 



Crassatellites undulatus (Say) . 



Crassatellites psychoptcrus Dall. 



Astarte ohruta Conrad. 



Astarte undulata Say. 



I'liacoidcs anodonta (Say). 



PJiacoides cribrarius (Say). 



Sohcardia cossmannl Dall. 



Bornia tnaitgvJa Dall. 



Cardium acntUaqueaiuin Conrad. 



Cardhiin laqueafum Conrad. 



Isocardia fraterna Say. 



Venus tridacnoidcs (Lamarck). 



CJiione nlocyma Dall. 



Callocardia (Agriopomn) suhnusuta (Conrad). 



MaeroraUista re pasta (Conrad). 



Dosinia acefahulum Conrad. 



Tellina (Angvlus) producta Conrad. 



Semele suhovata (Say). 



Cumingia niedialis Conrad. 



Asaphis centenaria (Conrad). 



Ensis ensiformis Conrad. 



Spisida delumhis (Conrad). 



Spisida subparilis ( Conrad ) . 



Spisula curtidens Dall. 



Spisula marylandica Dall. 



Mulinia milesii Holmes. 



Mulinia congesta ( Conrad ) . 



Splienia duhia (H. C. Lea). 



Panopca refiexa Say. 



Pa no pea goldfussi Wagner. 



Disci nisca luguhris (Conrad). 



