32 ANNUAL REPORT OF THE 



REPORT ON THE CRUSTACEA AND MOLLUSCA. 



By Walter Faxon. 



The Museum is under obligations to the following persons for 

 gifts of Crustacea during the past year: Dr. Thomas Barbour, 

 crayfishes from Franklin and St. Lawrence counties, N. Y., isopods 

 from Jamaica, including types of a new species, Cubaris jamaicensis 

 Richardson, and a small but interesting collection from Cuba; 

 Mr. W. F. Clapp, Crustacea from Sanibel Island, Fla., a pycno- 

 gonid dredged off Plymouth, Mass., terrestrial isopods from High 

 Pines, Duxbury, Mass., and pagurids dredged on the George's 

 Bank; the Rev. S. O. Dexter, a specimen of Cambarus immunis 

 spinirostris Faxon, taken in Walden Pond, Concord, Mass. ; Walter 

 Faxon, crayfishes collected in Concord, Pittsfield, Lanesboro, and 

 Great Barrington, Mass., also mounted microscopical prepara- 

 tions of crustacean larvae from Newport, R. L; George Nelson, 

 a small collection of Decapoda from Swan Island in the Caribbean 

 Sea; Mr. J. L. Peters, a crayfish collected at Quintana Roo in 

 southern Mexico; Dr. J. C. Phillips has been so good as to procure 

 by the aid of one of his collectors a fine series of Cambarus affirm 

 from ponds in Peabody, Essex Co., Mass.; Dr. Carlos de la Torre 

 y Huerta has kindly presented to the Museum some interesting 

 species from Cuba; the United States National Museum has 

 enriched the collection of Astacidae by the presentation of some 

 100 specimens; Mr. W. M. Wheeler has contributed isopods from 

 California and Arizona. 



By purchase from W. F. H. Rosenberg of London a collection of 

 Crustacea from Ceram and Goram has been secured, and from 

 J. Gabriel a small lot from Australia. 



The Schizopoda collected during the "Albatross " Expeditions of 

 1899-1900 and 1904-1905 have been worked up by Dr. H. J. Hansen 

 and published in the Memoirs of this Museum, Vol. XXXV, No. 

 4, with 12 copper plates. The collection has been returned to Cam- 

 bridge, a set retained from the duplicates for this Museum, the rest, 

 including the types of the eight new species, to be deposited in the 

 United States National Museum. 



Five species, including twenty-nine specimens of Cuban Crus- 

 tacea have been given to the United States National Museum. 



