MUSEUM OF COMPARATIVE ZOOLOGY. 31 



REPORT ON THE CRUSTACEA AND MOLLUSCA. 



By Walter Faxon. 



Accessions to the collection of Crustacea for the year are as 

 follows : — 



From Dr. G. M. Allen, Alpheus from Mombasa, British East 

 Africa; from Dr. Thomas Barbour, Squilla empusa from Marion, 

 Mass., Palaemon and Gecarcinus from Grenada, W. L, potamonid 

 from Puebla, Mex., Isopoda from Eau Gallie, Fla.; from Mr. 

 Samuel Henshaw, Oniscus asellus (cum pullis) from Montreal, and 

 a miscellaneous lot of Crustacea from the New Hebrides collected 

 by J. Annand in January, 1911; from Mr. George Nelson, Cam- 

 barus alleni from Fort Florida, Fla.; from Mrs. A. S. Packard, 

 microscopical slides (Apus, Eubranchipus, Nebalia) from the collec- 

 tion of the late Prof. A. S. Packard; from Mr. R. A. Spaeth, 

 eight species of Cyclops from Fresh Pond, Cambridge, Mass. 



A report on the decapod Crustacea collected by Dr. Thomas 

 Barbour in the East Indies in 1906-1907 and presented by him to 

 the Museum has been prepared by Miss M. J. Rathbun and 

 published by the Museum as Bulletin No. 16, Vol. LII. 



Mollusca have been received from Messrs. G. M. Allen, S. S. 

 Berry, J. H. Blake, W. F. Clapp, Mrs. Marie Binney Earl, 

 Messrs. Walter Faxon, Samuel Henshaw, and F. S. Smith, and 

 from the Peabody museum of archaeology and ethnology. The 

 most important of these gifts are the W. G. Binney collection of 

 North American pulmonate gasteropods received from Mrs. Earl, 

 and Mr. Clapp's collection of New England and Florida shells, 

 embracing about 1,200 lots and 420 species. 



The whole of the Pyramidellidae and about one half of the 

 Pulmonata of the Museum have been relabeled, numbered and 

 catalogued during the year by Mr. W. F. Clapp and Mrs. N. A. 

 Clapp. Owing to Mr. Clapp's absence from Cambridge during 

 several months of last winter, a large measure of accomplishment 

 in this Department is due to the untiring devotion of Mrs. Clapp. 



