LIST 



CONTRIBUTORS, 



With References to the several Articles contributed by ach. 



Page 

 Adams, Henry, F.L.S. 



List of Mollusks from Formosa • 146 



Descriptions of a New Genus and a New Species of Mol- 

 lusks 150 



Descriptions of Fifteen New Species of Land and Fresh- 

 water Shells from Formosa, collected by Robert Swinhoe, 

 Esq., Consul at Taiwan in that island. (Plate XXXIII.) . . 316 



List of the Shells collected by S. W. Baker, Esq., during 

 his recent explorations in Central Africa 375 



List of Laud and Freshwater Shells collected by Mr. E. 

 Bartlett on the Upper Amazons, and on the River Ucayali, 

 Eastern Peru, with Descriptions of New Species. (Plate 

 XXXVIII.) 440 



Descriptions of Six New Species of Shells, and Note on 

 Opisthostoma de-Crespignii. (Plate XXXVIII.) 445 



Annesley, Lieut. O. F. T., R.A. 



Notes on the Habits of Gonodactyliis chiragra. (Com- 

 municated by Dr. J. E. Gray.) 338 



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