CONTENTS. 



Part 1— August 1, 1871. 



Page 



1. Record of Meetings, ....... 1 



2. Descriptions of some New Types of Palaeozoic Shells, 



by F. B. Meek, . 4 



3. Descriptions of New Species of Nudibranchiate Mol- 



lusca Inhabiting Polynesia, No. 2, by W. Harper 

 Pease, ......... 11 



4. Notes on the Synonymy and Distribution of Marine 



Gasteropoda, by W. Harper Pease, . . .20 



5. Descriptions of New Species of Land Shells, by W. 



Harper Pease, ....... 26 



6. On the Lingual Dentition of Clausilia tridens, Chemnitz, 



by Thomas Bland and W. G. Binney, . . .28 



7. On the Lingual Dentition of Helicina occulta, by Tho- 



mas Bland and W. G. Binney, . . . .39 



8. Notices and Reviews of New Oonchological Works, by 



George W. Try on, Jr., 31 



I. American. — American Journal of Science and Arts ; Ameri- 



can Naturalist. 



II. Foreign. — British. — Tate's Land and Fresh-water Mollusca 



of Nicaragua; Conchologia Iconica ; Annals and Mag- 

 azine of Natural History. 



German. — Martini and Chemnitz's Conchylien Cabinet; 

 Novitates Conchologicae. 



