DEPARTMENT OE MARINE INVERTEBRATES. 227 



Prof. Walter Faxon, of the Museum of Comparative Zoology, Cam- 

 bridge, Massachusetts, has finished his studies upon the cray-fishes 

 sent him by this department in April, 1889, and upon those supplied 

 by the Fish Commission, chiefly from the collections made by Dr. David 

 S. Jordan and Mr. C. H. Bollman, in Virginia, North Carolina, and 

 Michigan, during 1888. The specimens from both sources have been 

 returned, and Professor Faxon's report has recently been printed in the 

 Proceedings of the Museum. Prof. Edwin Linton, of Washington and 

 Jefferson College, Pennsylvania, has continued his investigations upon 

 the entozoan parasites of fishes, and additional material was sent to 

 him in June, including a collection referred to Dr. A. S. Packard sev- 

 eral years ago, but not studied by him. The reports of Professor Lin- 

 ton, having a direct bearing upon the work of the Fish Commission 

 have appeared in its publications. 



Mr. W. C. Kendall, of the Fish Commission, was given the facilities 

 of the department during last spring to enable him to identify the 

 brachyuran crustaceans collected on the west coast of Florida in 1889 

 by the schooner Grampus. Miss South worth, of the Department of 

 Agriculture, was also afforded accommodations in the laboratory, dur- 

 ing about three months of the winter, for carrying on special researches 

 in zoology, and we are indebted to her for assistance rendered Mr. Ben- 

 edict in his examination of the Crustacea. 



The following additional material has been supplied to specialists out- 

 side of the Museum, for study and report: To Prof. F. H. Herrick, 

 Adelbert College, Cleveland, Ohio, the entire collection of Alphei, 

 comprising 49 lots of specimens. To Prof. C. S. Dolley, University of 

 Pennsylvania, Philadelphia, Pennsylvania, the entire collection of crus- 

 taceans from the Bahama Islands. To the Bev. Albert Mann, jr., 

 Newark, New Jersey, a number of samples of ocean bottom, to be 

 examined for diatoms. 



Series No. iv, of duplicate marine invertebrates, the composition of 

 which has been described in previous reports, has been distributed to 

 seventeen institutions. Each set contains about 110 species, collected 

 during the investigations of the U. S. Fish Commission on the Atlantic 

 coast of the United States. They have been prepared with the special 

 view of aiding teachers in their class-work in natural history, and 

 as most of the groups which they represent are difficult to obtain, par- 

 ticularly for the inland schools and colleges, they have been in great 

 demand for educational purposes. 



The institutions supplied daring the past year are as follows, namely : 

 Clark University, Worcester, Massachusetts; Lawrence University, 

 Appleton, Wisconsin ; University of South Carolina, Columbia, South 

 Carolina; Ottawa University, Ottawa, Kansas; Muhlenberg College, 

 Allentown, Pennsylvania; University of Wisconsin, Madison, Wiscon- 

 sin; High School, Council Bluffs, Iowa; New Orleans University, New 

 Orleans, Louisiana; Woman's College, Baltimore, Maryland; Public 



