IV CONTENTS. 



3. Descriptions of Miocene Shells of the Atlantic Slope, 



by T. A. Conrad, 64 



4. Description of a New Species of Pisidium, from Califor- 



nia, by Wm. M. Gabb, 69 



5. Description of a New Species of Cyprrea, by S. R. Rob- 



erts, 70 



6. Descriptions of Marine Gasteropoda, inhabiting Polyne- 



sia, by Wm. Harper Pease, 71 



7. On the Shells of Michigan, described by A. 0. Currier, 



(on the 112th and 118th pages of Vol. 3, Am. Jour. 

 Conchology.) By James Lewis, M.D., . . .81 



8. Notices and Reviews of New Conchological Works, by 



George W. Tryon, Jr., 86 



Foreign. — English. — Record of Zoological Literature. 



German.* — Novitates Conchologicre. Das Gebiss dcr 

 Schnecken. 



French. — Etude sur les Coquilles de la Fainille des Nayades, 

 etc. By Dr. A. Brot. Mollusques terrestres et fluviatiles 

 de la Voyage du Dr. F. Welwitsch. By Arthur Morelet. 

 Revue et Magasin de Zoologie. 



Part 3— November 3d, 1868. 



Page. 



1. Record of Meetings, 89 



-. Descriptions of Marine Gasteropodne, inhabiting Polyne- 

 sia, by Wm. Harper Tease, (continued) . . .91 



3. Synonymy of Marine Gasteropodoe, inhabiting Polynesia, 



by Wm. Harper Pease, 103 



4. Observations on Melantho, by James Lewis, M.D., . 133 



5. An Attempt at a Revision of the two families Strombidne 



and Aporrhaidse, by Wm. M. Gabb, . . .137 



6. Notes on Mullusca collected by Dr. F. V. Hayden in 



Nebraska, by George W. Tryon, Jr., . . . 150 



7. Description of a New Species of the genus Latirus, 



Montf., by Wm. Harper Pease, .... 152 



8. Description of a New Genus and eleven New Species of 



Land Shells, inhabiting Polynesia, by Wm. Harper 

 Pease, . . 153 



