68 REPORT OF NATIONAL MUSEUM, 1923. 



by the curator, Dr. W. L. Schmitt, for the Australian Museum, is now 

 in press. He has continued work upon the reports on the Macrura 

 and Anomura of the American Museum Congo Expedition, and the 

 Albatross 1911 Expedition to the Gulf of California. In the course 

 of routine identifications a very considerable accumulation of the 

 earlier Fish Commission collections of shrimps and hermit crabs have 

 been identified. An annotated "List of the Macrura and Anomura 

 from the 1921 Expedition of the California Academy of Sciences to 

 the Gulf of California" has also been prepared and transmitted to 

 that Institution for publication. A very considerable part of the 

 time of Clarence K. Shoemaker, assistant curator, has been given to 

 looking after office routine, and the separation of collections of in- 

 vertebrates into their component classes, in order to render them 

 available for specialists in the various groups. Some time has been 

 devoted to the classification of the collection of Amphipods sent to 

 the Musemn for identification, in connection with which studies a 

 great many specimens in our unidentified collections have been deter- 

 mined, catalogued, and incorporated in the regular reference col- 

 lections. Work has been continued upon the Amphipods of the Cheti- 

 camp Expedition of the Biological Board of Canada in the Gulf of 

 St. Lawrence, and some headway made with a report upon the Am- 

 phipods of the Albatross 1911 Expedition to Lower California. 

 H. K. Harring, custodian of the Rotatoria, has continued his inten- 

 sive studies on those forms. He has completed in collaboration with 

 Frank J. Myers, the second part of their joint report on " The Roti- 

 fers of Wisconsin." This completes the revision of the family 

 Notommatidae, and will be published as volume 21 of the Transac- 

 tions of the Wisconsin Academy. Some time was given to field work 

 in preparation for the monograph of American Rotifers contem- 

 plated by Mr. Harring in collaboration with Frank J. Myers, of the 

 American Museum of Natural History. In the course of the year a 

 considerable number of routine identifications have been made of 

 material sent in for determination. Prof. Max M. Ellis, of the Uni- 

 versity of Missouri, collaborator, has nearly completed his report on 

 the North American Discodrilid collections resulting from a cross- 

 continent automobile trip during the summer of 1921. 



Dr. William H. Dall, honorary curator of mollusks, completed 

 his monograph of the Hawaiian shell-bearing mollusks and Brachi- 

 opods and the manuscript has been forwarded to the Bishop Mu- 

 seum, Honolulu, for publication. An expedition to Palmyra Island, 

 situated about a thousand miles to the southward of Hawaii, in the 

 summer of 1922, was accompanied by D. Thaanum of Honolulu, 

 the donor of the Hawaiian collection, who presented to the Museum 

 a series of shells collected, with the understanding that a report 



