CONTENTS. 



1. Record of Meetings. 



2. Descriptions of some New Types of Palaeozoic Shells. By 



F. B. Meek 4 



3. Descriptions of New Species of Nudibranchiate Mollusca 



inhabiting Polynesia. No. 2. By W. Harper Pease 11 



4. Notes on the Synonymy and Distribution of Marine Gaste- 



ropoda. By W. Harper Pease 20 



5. Descriptions of New Species of Land Shells. By \V. Harper 



Pease *6 



6. On the Lingual Dentition of Clausilla tridens, Chemnitz 



By Thomas Bland and W. G. Binney 28 



7. On the Lingual Dentition of Helicna occulta. By Thomas 



Bland and W. G. Binney 20 



8. Notices and Reviews of New Conchological Works. By 



George W. Tryon, Jr.... 31 



I. American.— American Journal of Science and Arts — American Naturalist. 



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



logia Ieoniea— Annals and Magazine of Natural History. 

 Cerman— Martini and Chemnitz's Conchylien Cabinet— Novitates Conchologicse. 



Note. — The colored plates illustrating Mr. Pease's 'papers will be issued 

 with future numbers of the Journal. 



NOTICE TO CONTRIBUTOBS. 



Authors sending specimens with their papers, can have colored illustra- 

 tions furnished without expense to them. 



Twenty copies of every contribution (without re-paging or illustration) is at 

 the service of its author, if applied for in season. 



Extra copies, re-paged, can be had on the following terms : 



2-> copies. 50 copies. 100 copies. 250 copies 



16 pages, Si 00 $5 00 $6 75 $10 00 



8 pages, 3 00 3 75 5 25 7 50 



2 to 4 pages, 2 50 3 12 4 25 6 25 



Uncolored plates at 3 cents each, or colored plates 12 to 18 cents each. 



Contributions, as well as Papers and Works for Review or Exchange, 



should be directed to 



Cnncholoffical Section, Academy of Natural Sciences, Philadelphia. 



