LIST OF AUTHORS 



AND THEIR CONTRIBUTIONS. 



Beadle, Rev. E. R. Report of Secretary. (Appendix), 20 



Conrad, T. A. Observations on Pleiodon Macmurtrii, . 4 

 Palseontological Miscellanies, . . .5 

 Description of new Genera and Species of Fossil Shells, 8 

 Synopsis of the genera Sycotypus, Browne, and Busy- 

 con, Bolten, ..... 182 

 Description of new Miocene Shells, . . . 186 

 Notes on Fossil Shells and description of new species, 188 

 Description of a new genus of Astartidse, . . 191 

 Description of new West Coast Shells, . . 192 

 Descriptions of new genera and species of Miocene 

 Shells, with notes on other Fossils and recent species, 257 

 Crosse, H. On the Errors of too exclusive Classification, 17 

 Currier, A. 0. Description of new species of Fresh-water 



Shells from Michigan, .... 112 



Gabb, W. M. Description of new species of Land Shells 



from Lower California, .... 235 



Gill, Theo. On the genus Fulgur and its allies, . . 141 



On the systematic position of Buccinum Altile and B. 

 Escheri, ...... 153 



Haldeman, S. S. Description of a new species of Limnea, 194 

 Howell, S. B. Description of two new species of Cephalo- 



pods, ...... 239 



