iv. CONTENTS. 



Part 2— April 15th, 1865. 



1. Observations on the Family Strepomatidse, by Geo. W. 



Tryon, Jr. 



1. Classification 97 



2. Geographical Distribution. 125 



2. Description of two New Species of Helix, by A. D. Brown. 136 



3. Descriptions of New Eocene Shells from Enterprise, Mis- 



sissippi, by T. A. Conrad 137 



4. Description of New Eocene Shells of the United States, 



by T. A. Conrad 142 



5. Catalogue of the Older Eocene Shells of Oregon, by T. A. 



Conrad 150 



6. Descriptions of New Species of North American Union- 



idse, by John G. Anthony 155 



7. Catalogue of the Species of Physa, inhabiting the United 



States, by George W. Tryon, Jr 165 



EDITOR'S TABLE. 



Reviews and Summary of Conchological Publications 174 



American. — Description of Six New Species of Western Asiatic Unionidge, 

 by Isaac Lea. — Newcomb's Descriptions of New Land Shells- — De- 

 scriptions of New California Marine Shells, by W. M. Gabb. 



Foreign. — Reeve's Conchologica Iconica. — Mr. P. P. Carpenter's New 

 West Coast Species in Annals and Magazine of Natural History. — De- 

 scriptions of New Terrestrial Shells, by W. H. Benson. 

 Bourguignat's Mollusques Noveaux, Litigieux ou peu Connus. — Malaco 

 logie de I'Algerie. — Conchology of the Island of Bourbon, by Des- 

 hayes — Journal de Conchyliologie, etc. 



Scientific Intelligence 188 



Change of Name of Helix Binneyana Morse, to H. Morsel. — Depar- 

 ture of Mr. J. G. Anthony to Brazil. — Correction of Date of Publi- 

 cation of No. 1 of this Journal. — Correction of Error in Date of Pub- 

 hcation of Mr. Lea's " Contributions to Geology," in Mr. Conrad's 

 Cat. of Eocene Mollusca, published in No. 1 of this Journal. 

 Corrections and Additions to Mr. Conrad's Eocene Catalogue. 



ILLUSTRATIONS. 



Portrait of Isaac Lea, with Autograph. 

 Three Colored and Five Plain Plates. 



