SECTION B.] NORTH AMERICAN CONCHOLOGY. 



489 



Adams. — Monograph of Stoastoma, a new genus of new oper- 



culated Land Shells: by C. B. Adams, A.M. Amherst, 

 Mass. September, 1849. 



Page. Page. 



3 Stoastoma Ad. 10 



5 Gouldianum Ad. Jamaica. 11 



6 Blandianum Ad. Jamaica. 12 



7 Fadyenianum Ad. Jamaica. 13 



8 Pfeifferianum Ad. Jamaica. 14 



9 Cumingianum Ad. Jamaica. 15 



Chittyanum Ad. Jamaica, 

 pisum Ad. Jamaica. 



Lindsleyanum Ad. Jamaica. 

 Redfieldianum Ad. Jamaica. 

 Jayanum Ad. Jamaica. 



Leanum Ad. Jamaica. 



Adams. — Monograph of Titrinella, a new genus of new species 

 of Turbinidas : by C. B. Adams. Amherst, Mass. Feb. 1850. 



Page. 

 3 Vitrinella Adams. 



5 hyalina Adams. Port Royal, Jamaica. 



6 interrupta Adams. Port Royal, Jamaica. 



7 megastoma Adams. Port Royal, Jamaica. 



8 tincta Adams. Port Royal, Jamaica. 



9 helicoidea Adams. Port Royal, Jamaica. 



Adams. — Remarks on the Distribution of the Testaceous Mol- 

 lusca of Jamaica : by Prof. C. B. Adams. (From American 

 Association for the Advancement of Science, second meeting, 

 p. 147. Boston, 1850.) 



IKedHeld. — Catalogue of Operculated Land Shells in tbe col- 

 lection of John H. Redfield. New York, July 1st, 1850, 

 and 



RedfieBd. — Catalogue of Marginellidre in the collection of 

 John II. Redfield. January 1st, 1851. 



[No descriptions being given, I do not repeat these Catalogues. — W. 

 G. B.] 



CailSaflld. — On the perforation of rocks by Pholades : by M. 

 F. Caillaud. (From American Journal of Science, n. s., vol. 

 xiii, p. 287. March, 1852. Notice of a paper in Comptes 

 Rendus, November 24, 1851, p. 572. 



