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BIBLIOGRAPHY OF 



Conrad. — On the Geology and Organic Remains of a part of 

 the peninsula of Maryland: by Timothy A. Conrad. (In the 

 Journal of the Academy of Natural Sciences of Philadelphia, 

 vol. vi, pt. 2, pp. 2U5-217, 1830.) 



The following species are said to be found recent on our coast : — 



Psarnmobia fusca Say. 



lusoria Say. 

 Solen Caribasus Linn. 



ensis Linn. 

 Venus mercenaria Lam. 

 Nassa trivittata Say. 



obsoleta Say. 



lunata Say. 

 Natica heros Say. 

 Pyrula carica Lam. 



canaliculata Lam. 

 Scalaria clathrus. 

 Area arata Say. 

 Cytherea concentrica L,am. 

 Ostrea Virginica Lam. 

 Saxicava distorta Say. 

 Venus paphia ? 

 Lucina divaricata Lam. 

 Fissurella grasca Lam. 



Conrad. — In the same volume of the Journal (pp. 256-268), 

 are descriptions of fifteen new species of recent, and three of 

 fossil shells, chiefly from the coast of the United States, by 

 Timothy A. Conrad; with a plate. April, 1831. 



Page. Plate. Fig. Name. Locality. 



256 Mactra solidissima Chemnitz. 



M. solida var. S Grinelin. 

 M. procera Solander. 

 M. grandis Solander. 

 M. stuhorum Solander. 

 M. gigantea Lamark. 

 .1/. similis Say. 



257 xi 1 areata Conrad. Massachusetts. 



258 xi 2,3 tellinoides Conrad. Mass., R. I., Fl. 



258 xi 4 nucleus Conrad. New Jersey. 



259 xi 5, ti, 7 Cardium Mortoni Conrad. Northern coast. 



260 xi 8 pinnulatum Conrad. . Massachusetts. 



