248 



AMERICAN JOURNAL 



J. H. Redfield. Eleven species of Marginella, mostly new to 

 the collection ; also twenty species of bivalve Mollusca, new 

 to the collection. 



S. R. Roberts. Four species of Clausilia and one species of 

 Bulirnus, from Greece. 



T. Hale Streets. Bulirnus Powisianus, from Isthmus of Te- 

 huantepec. 



Geo. W. Tryon, Jr. Twenty species of bivalve Mollusca, new to 

 the collection. 



Dr. H. C. Yarrow. Numerous specimens of Ling ula pyr ami- 

 data, Stimp., in alcohol. One hundred and fourteen species 

 of shells, from Beaufort, N. C. 



William S. Vaux. Twenty-seven species Ci/prcea, Ovulum and 

 Solen, new to the collection. 



One hundred species, numerous specimens of shells from Pana- 

 ma, including a number of species in alcohol, and fifty-six spe- 

 cies from the coast of Nicaragua, were presented by the sub- 

 scribers to the McNeil Expedition to Central America. 



Eighty-five species of Polynesian Mollusca, principally new, 

 collected by the GodeflVoy Natural History Expedition, were 

 purchased, together with thirty species of bivalve Mollusca, new 

 to the collection, and selected by the Rev. Dr. Beadle during his 

 recent visit to London. 



During the year the Committee on the Arrangement of the 

 Cabinet, consisting of Messrs. Parker, Hassler, Roberts, Tryon 

 and Nolan, has cleaned, mounted and labelled 6,881 specimens 

 in 1,898 trays. This includes the Cardiidae, Lucinidae, Chamidie, 

 Petricolidas, Melanidse, Tridacnidse, Terebratulidae, North Amer- 

 ican Helices and Corbiculadae in part. The current additions to 

 the families already arranged have also been mounted and placed 

 in the cases as soon as received. 



The sale of duplicate specimens has furnished sufficient funds 

 for the purchase of about sixty additional drawers, which have 

 been procured and placed in the museum. 



The total number of species mounted and arranged to date is- 

 4,031; number of trays and labels prepared, 7,169; total num- 

 ber of specimens prepared and mounted, 20,941. 



All of which is respectfully submitted, 



Edward J. Nolan, Conservator. 



