NORTH AMERICAN CONCHOLOGY. 



261 



[Annals of Nat. Hist.] 



Vol. Page. 



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1853. 



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IS.J 



4. 



xiii 



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xiii 



145 



Trochus (Monodonta) aureotinctusFis. Mazatlan. 



(Margarita) purpuratus F6s. W. C. of America? 



Hillii Forbes. W. C. of America ? 



Natica Pritchardi Forbes. Mazatlan. 



Planaxis nigritella Forbes. Strs. Juan de Fuaco. 



Purpura analoga Forbes. California. 



Fusus Kellettii Forbes. California. 



Oregonensis. California. 



" salebrosus. Mazatlan. 



J. S. GashLoin.— (From P. Z. S.) 



Columbella Californica Gaskoin. Sandeago, Cal. 



A. Adams (From P. Z. S.) 



SubemargiQula denticulata Ad. Mexico. 



Infundibulum Californicum A. Ad. California. 



Phorcus Californicus A. Ad. 

 Ziziphanus Californicus A. Ad. 

 Margarita calostoma A, Ad. 

 Velutina Sitkensis A. Ad. 

 Puncturella cucullata Gould. 

 R'nnnla cucullata Gould. 

 galeata Gould. 



Riinula (jaleata Gould. 

 princeps Migh. Sf Ad. 



Coiwriu galeata Migh. & Ad. 



Philippi.— (From P. Z. S.) 



Natica intemerata Phil. 



L. Pfeiffer.— (From P. Z. S.) 



Bulimus varicosus Pfr. 

 attenuatus Pfr. 



California. 



California. 



Juan de Fuca, Up. Cal. 



Sitka. 



Puget Sound. 



Gulf of California. 



Mexico. 

 Vera Cruz. 



A. Adams.— (From P. Z. S.) 

 xiU 156 Lagena Californica Ad. 



California. 



xiv 418 II. & A. Adams. — Description of a new genus of Bivalve 

 MoUusca : by H. & A. Adams. 



xiv 418 Tyleria Ad. n. g. 

 xiv 418 fragilis .1'/. 



Mazatlan. 



