SECTION B.] NORTH AMERICAN CONCHOLOGY. 553 



[Proceedings Academy of Natural Sc] 

 Dec. 1S53. 

 Vol. Pa. 



vi 448 T. A. Conrad. — Synopsis of Cassidula, &c. (vide p. 



383). 



vi 448 Cassidula hippocastanum. Samar. 



Murex hippocastanum Born. 



Buccinum calcaratum Sol. 



Cassidula calcarata Humphr. 



Murex calcaratus Dill. 



Pyrula galeodes Lam. 

 vi 448 melongena. West Indies. 



Murex melongena Linn. 



Pyrula melongena Lam. 

 vi 448 bispinosa Conr, 



Pyrula bispinosa Phil, 

 vi 449 patula Conr. Caraccas Bay. 



vi 449 ? parasidiaca. 



Pyrum parasidiacum Mart. 



Pyrula nodosa Lam. 



vi 449 T. A. Conrad. 



Requienia Senseni Conr. = Arietina Conr. (n. s. g.) 



Jan. 1854. 

 vii 1 I. L.ea. — Note on — 



Acostsea guaduasana D'Orb. 



March, 1854. 

 vii 32 Conrad.— (Vide p. 3S4.) 



vii 32 Bulimus lineolatus Conr. Volcano of Cartago, 



Costa Rica. 

 June, 1S55. 

 vii 375 Stiinpson. — Descriptions of some of the new Marine 



Invertebrata from the Chinese and Japanese Seas, &c. : 

 by William Stimpson, Zoologist to the United States 

 Surveying Expedition to North Pacific, Japan Seas, 

 &c, Lieut. John Rodgers, Commander. 



