LIST OF AUTHORS, 

 And their Contributions. 



Anthony, John G. 



Descriptions of two New Species of Goniobasis 36 



Descriptions of New Species of North American UnionidEe... 155 



Descriptions of two New Species of Monocondyloea 205 



Description of a New Exotic Melania 207 



Descriptions of New Species of Shells 351 



Binney, WiUiam G. 



Note on the Jaws of Helices 47 



Description of the Genus Ariolimax, Morch 48 



Descriptions of New Species of North American Land and 



Fresh Water Shells 49 



Bland, Thomas. 



Note on the Buccal Plate, in certain Genera of Cyclostomacea 45 

 Memoir of Professor Charles B. Adams 191 



Brown, A. D. 



Description of two New Species of Helix 136 



Conrad, T. A. 



Catalogue of the Eocene and Oligocene Testacea of the United 



States 1 



Description of New Eocene Shells, from Enterprise, Miss 137 



Description of New American Eocene Shells 143 



Catalogue of the Older Eocene Shells of Oregon 150 



Descriptions of New Eocene Shells , 210 



Descriptions of five New Species of Older Eocene Shells from 



Shark River, Monmouth County, New Jersey 213 



Remarks on the Genera Monocondyloea and Pseudodon, with 



a Synopsis of the latter 232 



Description of a New Genus of Unionidfe 234 



Description of a New Species of Pseudodon 353 



Criticism on Mr. Gabb's Report on Cretaceous Mollusca of 



California 363 



Corrections and Additions to Eocene Catalogue 



Currier, A. 0. 



Catalogue of Mollusca of Grand Rapids, Michigan 293 



vii. 



