(■ONTENTS. 



Page. 



1. Record of Meetings 37 



2. Supplement to the " Revision of tr-e Terebratulidae," with 



Additions, Corrections and a Revision of the Craniidae 

 and Discinidaa. By W. II Dal] .' 39 



;:. Notes on Dr. James Lewis' pap°r " On the Shells of the 



Ho'ston River." By Geo. W. Tryon, Jr 86 



4. No' r e on the Genus Aniso^hyrls, Conrad, -with a Description 



of a New Species. By \Y. IT. Dall 89 



5. Descriptions of Sixty New Spec?es of Mollusks from the 



West Coast of North America and the. North Pacific 

 Ocean, with Notes on others already Described. By W. 

 II. Pall ". 93 



6. On the Lingual Dentition of Linnasa appressa, Say, and Lin- 



neea megasoma, Say. By- Thomas Bland and W. G. Binney.... 161 



7. On the Lingual Dentition of Veronicella. By Thomas Bland 



and \Y. G. Binney '. 162 



NOTICE TO CONTRIBUTORS. 



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, ran be had on the following terms : 



16 pages, 



8 pages. 



2 to 4 pages, 



TJncolor&d 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 



C'opi a. Academy of Natural Sciinccs, Philadelphia. 



