NORTH AMERICAN CONCHOLOGY. 



20 1 



[Annals of Nat. Hist.] 



Vol. Page. 



X 306 



X 307 



X 307 



X 307 



X 307 



X 308 



X 309 



X 309 



X 309 



Trochus (Monodonta) aureotinctus /T)s. Mazatlan, 

 (Margarita) purpuratus i'fo. W. C. of America? 



Hillii Forbrs. 

 Natica Pritchardi Forbes. 

 Planaxis nigritella Forbes. 

 Purpura aualoga Forbes. 

 Fusus Kellettii Forbes. 



Oregonensis. 



salebrosus. 



W. C. of America ? 



Mazatlan. 



Sirs. Juan de Fuaco. 



California. 



California. 



California. 



Mazatlan.- 



X 367 

 X 371 

 1S53. 



XI 



xi 

 xii 

 xii 

 xii 

 xii 

 xii 

 xii 



146 



152 

 143 

 144 



201 

 212 



283 

 286 



xii 286 



xii 287 



J. S. Gaskoin.— (From P. Z. S.) 



Columbella Californica Gaslcoin. Sandeago, Cal. 



A. Adams.— (From P. Z. S.) 



Subemarginula denticulata Ad. Mexico, 

 lufundibulum Californicum A. Ad. California. 



Phorcus Californicus A. Ad. 

 Ziziphanus Californicus A. Ad. 

 Margarita calostoma A. Ad. 

 Velutina Sitkensis ^1. Ad. 

 Puncturella cucullata Gould. 

 Rimula cucullata Gould. 

 galeata Gould. 



Rimxda galeata Gould, 

 princeps Migh. Sf Ad. 



Ccinoria galeata Migb. & Ad. 



Pliilippi.— (From P. Z. S.) 



Natica intemerata Phil. 



L. Pfeiffer.— (From P. Z. S.) 



Bulimus varicosua Pjr. 

 attenuatus Pfr. 



California. 



California. 



Juan de Fuca, Up. Cal. 



Sitka. 



PuL'et Sound. 



Gulf of California. 



Mexico. 

 Vera Cruz. 



A. Adams.— (From P. Z. S.) 

 xiii 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 Ad. Mazatlan. 



