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PROCEEDINGS OF THE 



[May, 1858. 



Prof. McCrady made some remarks on the Actinia which 

 he had exhibited, Jinthea Jiavidula. 



Correspondents Elected. 



M. (le Docteur) E. Brown-Sequard, Paris. 

 W. Stimpson, Esq. Washington. 



MAY 1st, 1858. 

 Prof. L. R. Gibbes, Vice-President, in the chair. 



Contributions to Library. 



L'Academie des Sciences, Arts, et Belles Lettres de Dijon. 

 LesMemoires de l'Academie. Tomes 1,2, 3,4 du 5 me, series. 



Nouveau Genre d'Edente fossile, Nodot. Atlas With. 



Academy of Natural Sciences, Philadelphia, Proceedings 

 and circular. 



Boston Society of Natural History. Proceedings. 



North American Helicidse. Thos. Bland. 



Crustacea and Echinodermata of the Pacific shores. Wm. 

 Stimpson, Esq. 



Prof. L. R. Gibbes presented Leidy's Fossil Sloth and Inver- 

 tebrata of New Jersey, and Bailey's Microscopic Organisms. 



A letter was read from Wm. Stimpson, Esq., accepting 

 his election as correspondent. 



Dr. E. Ravenel introduced the following paper on three new 

 species of univalves, recent and fossil. 



Description of three new species of Univalves, recent and fossil, 

 by E. Ravenel, M. D. 



CHEMNITZIA SPEIRA. 

 Fossil. Post pleiocene , Wando River, So. Ca. 



Shell turreted, very slender and pointed, glossy white, whorls 

 ten, nearly flat, reticulated with numerous ribs and interrupted 

 revolving lines. Suture well defined, with a distinct impressed 



