SECTION B.] NORTH AMERICAN CONCHOLOGT. 553 



[Proceedings Academj 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 Bom. 



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 blspinosa Conr. 



Pyrula hispinosa Phil, 

 vi 449 patula Conr. Caraccas Bay. 



vi 449 ? parasidiaca. 



Pyrum parasidiacum Mart. 



Pyrula nodosa Lam. 



vi 449 T. A. Conrad. 



Requienia Sensenl Conr. ^ Arietina Conr. (n. s. g.) 

 Jan. 1854. 

 vii 1 I. l.ea. — Note on — 



Acostxa guaduasana D'Orb. 



March, 1854. 

 Vii 32 Conrad.— (Vide p. 384.) 



vii 32 Bulimus liueolatus Conr. Volcano of Cartago, 



Costa Rica. 

 June, 1855. 

 vii 375 Stimpson. — 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. 



vii 



377 



Ascidia tubifera St. 





China. 



vii 



377 



calcata St. 





Japan. 



vii 



377 



Schizascus St. (n. g.) 







vii 



377 



pellucidus St. 





China. 



vii 



377 



papillosuB St. 





China. 



vii 



377 



Molgula labeculifera 



St. 



China. 



