36 ANNUAL KEPORT OF THE 



REPORT ON THE CRUSTACEA AND MOLLUSCA. 



By Walter Faxon. 



GrFTS of Crustacea and Mollusca have been received during the 

 past year from Messrs. A. Agassiz, H. Ayers, 0. Bangs, J. H. 

 Blake, H. Garman, W. A. Hickman, R. T. Jackson, A. M. Nor- 

 man, A. Ortmann, and W. McM. Woodworth. Of these the most 

 valuable is a lot of Crustacea, comprising twenty-two species from 

 Greenland and Davis Straits, — the gift of the Rev. A. M. 

 Norman. 



In the winter of 1893-94, I undertook, with Miss Parker's 

 assistance, the systematic arrangement of the large collection of 

 Molluscan shells stored in two rooms on the fifth floor of the 

 Museum. A brief statement of the then condition of the collec- 

 tion, together with the system to be observed in its revision, was 

 made in my Report for 1893-94. This work was brought to a 

 finish during the spring of the present year. The shells are now 

 not only easily accessible, but also (as I hope) in a state of perma- 

 nent safety. The collection as now arranged is contained in 

 1,730 wooden drawers or trays (26| X 17 in., inside measure- 

 ment). Of these (to specify some of the larger divisions) the 

 Muricidae occupy 39 trays, the Volutidse 44, the Conidae 39, the 

 Strombidae 39, the Cyprasidae 48, the Melaniidse 54, the Trochidae 

 50, the Helicidae 314, the Tellinida3 35, the Veneridae 47, the 

 Unionidae 271. In this collection are included the types of the 

 shells described by J. G. Anthony and by Temple Prime ; in 

 many groups, moreover, the identifications were made by Mr. 

 Anthony through a direct collation with the original types, so that 

 the specimens have come to have a value second only to types. 



The alcoholic collection of Mollusks, stored in the basement of 

 the building, fills 95 trays. Here is found most of the deep-sea 

 material from the " Blake " and " Albatross " dredgings, — mate- 

 rial elaborated by Messrs. W. H. Dall and A. E. Yerrill. 



These collections, together with the extensive suites of mounted 

 specimens in the Exhibition Rooms, make up the Molluscan wealth 

 of the Museum. 



