12 



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. 205-217, 1830.) 



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

 Pag( 



2(17 

 207 



207 

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 207 

 207 

 207 

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 207 

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 208 



208 

 208 

 208 

 208 

 208 



208 



Crepidula convexa Say. 



glauca Say, 

 Fusus cinereus Say. 

 Nassa obsoleta Say. 



trivittata Say. 

 Natica duplicata Say. 

 Rauella caudata Say. 

 Area transversa Say. 



ponderosa Say. 

 Corbula contracta Say. 

 Clathrodon cuneata Gray. 

 Cyrena truncata Lam. ? 

 Mactra lateralis Say. 

 Mya mercenaria ^ay. 

 Mytilus hamatus Say. 

 Pandora trilineata Say. 

 Petricola pholadiformis 



Lam. 

 P. fornicata Say. 

 Fholas costata Lam. 



Page. 



208 Fsammobia fusca Say. 



208 lusoria Say. 



208 Solan Caribaeus Linn. 



208 ensis Linn. 



208 Venus mercenaria Lam. 



211 Nassa trivittata Say. 



211 obsoleta Say. 



211 lunata Say. 



211 Natica heros Say. 



211 Fyrula carica Lam, 



211 canaliculata.ZaTR. 



211 Scalaria clathrus. 



212 Area arata Say. 



212 Cytherea coneentrica Lam. 



212 Ostrea Virginica Lam. 



212 Saxicava distorta Say. 



'21'2, Venus paphia ? 



216 Lucina divaricata Lam. 



216 Fissurella greeea 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. 



Pig. 



Name. 



Locality. 



256 







Mactra solidissima Chemnitz. 

 M. solida var. B Gmelin. 

 M. procera Solander. 

 M. grandis Solander. 

 M. stultorum Solander. 

 M. gigantea Lamark. 

 M. 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 



5,6,7 



Cardium Mortoni Conrad. 



Northern coast 



260 



xi 



8 



pinnulatum Conrad. 



Massachusetts 



