Vlii. LIST OF AUTHORS, ETC. 



Gabb, William M. 



Descriptions of three New Mexican Land Shells 208 



Haldeman, Prof. S. S. 



Descriptions of Two New Species of Goniobasis 37 



On the Propriety of Leptoxis as a Generic Name 298 



Newcomb, W., M. D. 



Description of a New Species of Helix , .-... 235 



Catalogue of Helices inhabiting the West Coast of America, 



with Remarks on their Geographical Distribution, etc 343 



Pease, William Harper. 



Descriptions of New Polynesian Phaneropneumona 287 



Stimpson, William, M. D. 



Descriptions of New Genera of Hydrobiina3 52 



On Certain Genera and Families of Zoophagous Gasteropods.. 55 



Try on, George W., Jr. 



Description of New Species of Strepomatidae 38 



Descriptions of New Species of Pholadidse 39 



Observations on the Genus lo 41 



Catalogue of Mollusca of Davenport, Iowa 68 



Observations on the Family Strepomatidfe 97 



Catalogue of the Species of Physa, of the United States 165 



Descriptions of New Species of Melania 216 



Descriptions of New Species of Amnicola, Pomatiopsis, Soma- 



togyrus, Gabbia, Hydrobia and Rissoa 219 



Descriptions of New North American Limnseidae 223 



Review of the Goniobases of Oregon and Cahfornia = 236 



Catalogue of the Species of Lininsea of the United States 247 



Description of a New Species of Mercenaria 297 



Monograph of the Family Strepomatidae 299 



Wheatley, Charles M. 



Revision of M. Petit's Catalogue of the Genus Monocondylcea... 65 



Whitfield, R. P. 



Descriptions of New Species of Eocene Fossils 259 



