24 MUSEUM OF COMPARATIVE ZO-OLOGY. , [Jan, 



ANNUL ATA. 



The whole number of specimens added since last Report is 

 163, embracing 44 species. Of these 12 species, 14 specimens 

 were presented ; 8 species, 55 specimens received in exchange ; 

 and 24 species, 94 specimens procured with the Gray Fund. 



PRESENTED. 



Agassiz, A. 8 species, 8 specimens, from Nahant, Mass. 

 Hartt, C. F. 3 species, 5 specimens, from Halifax, N. S. ; 1 species, 

 1 specimen, from Harborville, N. S. 



Report on the Collection of Mollusks, by J. G. Anthony. 



Since our last Report much has been done in the way of 

 increasing the collection of Mollusca, which is now in much 

 better condition than at the same period last year. My absence 

 from the country, however, with the expedition to Brazil, has 

 prevented a considerable amount of work being done in mount- 

 ing and arranging the collection ; but this is less to be 

 regretted at this time, since the cramped condition in which we 

 find ourselves, for want of room to exhibit the specimens after 

 being mounted, would have compelled the retention of the 

 greater portion of them in the work-rooms, where they would 

 not be seen by visitors to the Museum. The only important 

 work done in this line since our last Report, has been the 

 mounting of all our cypress and ovulse, for which room was 

 made in one of the cases in the exhibition rooms by displacing 

 specimens already there, and they are now on exhibition, 

 forming an interesting addition to our mounted specimens. 



During the current year, the cabinet of shells belonging to 

 Mr. Anthony, alluded to in our last year's Report, has been 

 purchased, and is now in process of preparation, for being duly 

 handed over to the Museum. The main collection lias long 

 been arranged, and would require but little labor before being 

 ready for exhibition ; but the large number of duplicates 

 require, and are now undergoing, a thorough examination, in 

 order to render them available in our foreign exchanges, where 

 they will be particularly serviceable. The purchase of this 

 collection will add about 5,000 species of terrestrial and fluvia- 



