Vlll. LIST OF AUTHORS, ETC. 



Dall, William H. 



On a Species of Helix from California, supposed to be New, 323 



Daulte, Frank. 



A Well-abused Mollusk. (Translated from tbe French of H. 



Crosse ) ---------- 294 



Gabb, William M. { 



Reply to Mr. Conrad's Criticism on Mr. Gabb's "Report on tbe 



Palaeontology of California, 87 



Descriptions of Three New Species of Land Shells from Arizona, 330 



MOrch, 0. A. L. 



' On the Modern Classification of Mollusks, - 83 



Newcomb, Wesley, M. D. 



Description of a New American Species of Helix, - - 1 



Addition to "Catalogue of Helices Inhabiting the "West Coast 



of North America, North of Cape St. Lucas," - - 13 



Descriptions ot Achatinelloe, - 209 



Pease, William Harper. 



Descriptions of New Species of Partula, Inhabiting the Tahitian 

 Archipelago, --------- 193 



Remarks on Nudibranchiata Inhabiting the Pacific Islands, with 



Descriptions of Two New Genera, - 204 



Descriptions of New Species of Land Shells, Inhabiting Poly- 

 nesia, 289 



Try on, George W., Jr. 



On an Abnormal Specimen of Planorbis bicarinatus, - - 3 



Descriptions of New Fresh-water Shells of the Uuited States, 4 



Descriptions of New Exotic Fresh-water Mollusca, - - 8 



Description of a New Species of Rissoa, - 12 

 Monograph of the Family Strepomatidae, - - - - 14, 115 



Note on Mr. Pease's Species of Polynesian Phaneropneumona, 82 



Description of a New Species of Vivipara, - - - - 108 



Descriptions of New Fluviatile Mollusca, - 111 



Observations on an Abnormal Specimen of Physa gyrina, - 114 



Note on the Lingual Dentition of the Strepomatidae, - - 134 



Monograph of Terrestrial Mollusca of the United States, 218, 306 



Description of a New Species of Columna, ... - 297 



Descriptions of New Species of Melaniida? and Melanopidae, 299 



Description of a New Species of Septifer, - 302 



Description of a New Species of Helix, ... - 303 



On the Terrestrial Mollusca of the Guano Island of Navassa, 304 



