1867.] SENATE— No. 52. 27 



Va. ; 32 species, 68 specimens, from Andover, Mass.; 12 species, 34 

 specimens, from Chelsea Beach. 



Wright, C. 141 species, 746 specimens, from Cuba. 



By Exchange. 

 Through this source we have added 2,896 specimens of 1,003 species, 

 from various parts of the world, obtained through fifteen different 

 individuals and institutions. 



The Gray Fund. 

 Has procured 3,546 specimens of 1,004 species, through six indi- 

 viduals. 



Crustacea. 



During the past year the additions from all sources have 

 amounted to 4,974 specimens of 257 species. The greater 

 part of these were procured by the Thayer Expedition. From 

 this source alone 4,518 specimens were derived. The exchanges 

 have added 270 specimens of 46 species. 



Presented. 



Forbes, R. B. 1 species, 3 specimens, Loc ? 



Mack, Dr. D., Jr. 6 species, 14 specimens, from Washington Terri- 

 tory ; 1 species, 1 specimen, from Coronal, Chili. 



Thayer Expedition. 



1 species, 40 specimens, from the Atlantic Ocean ; 1 species, 26 speci- 

 mens, from Tonantins ; 1 species, 1 specimen, from Lago Alexo ; 1 

 species, 1 specimen, from Lago Maximo; 3 species, 5 specimen, from 

 Rio dos Macacos; 4 species, 106 specimens, from Pernambuco; 8 

 species, 116 specimens, from Maranhao. 



Agassiz, Prof. L., and others. 5 species, 12 species, from Rio de 

 Janeiro; 2 species, 25 specimens, from Masseio; 1 species, 1 speci- 

 men, from Manaos; 3 species, 66 specimens, from Villa Bella; 5 spe- 

 cies, 11 specimens, from Parahyba do Norte; 1 species, 3 specimens, 

 from Gurupa; 1 species, 1 specimen, from Montalegre; 3 species, 513 

 specimens, from Para. 



Bourget, D., and others. 3 species, 3 specimens, from Cudajas ; 5 

 species, 28 specimens, from Tabatinga; 1 species, 7 specimens, from 

 Manacapuru ; 4 species, 57 specimens, from Teffe ; 3 species, 4 speci- 

 mens, from Coary ; 1 species, 1 specimen, from Javary ; 2 species, 43 

 specimens, from Santarem ; 9 species, 24 specimens, from Santa Cruz. 



