GENERAL INDEX. 



891 



113, 146, descriptions of a new 

 species of fresh water Mollusca be- 

 longing to the families Amnicolidse, 

 Valvatidae and Limnseidse, inhabiting 

 California, 113, 147 ; description of 

 a new species of Pleurocera, 277, 

 279; descriptions of two newMexican 

 Land Shells, 277, 281 ; description 

 of a new Teredo, 277, 280 ; synony- 

 my of the species of Strepomatidas, 

 a family of Fluviatile Mollusca, in- 

 habiting North America, part 1, 282, 

 306. 



Wilcocks, Dr., remarks on colored 

 Stars, 26. 



Wilson, Dr. T. B., on a third Kingdom 

 of organized Bodies, by T. B.Wilson, 

 M. D., and John Cassin, 113. 



Winchell, A., description of Fossils 

 from the Yellow Sandstones lying 

 beneath the "Burlington Lime- 

 stone," at Burlington, Iowa, 2. 



Wood, Dr. H. C, Jr., descriptions of 

 new species of Pedipalpi, 99, 107. 



