70 EEPORT OF NATIONAL MUSEUM, 1921. 



crabs known from North and South America. She has also named 

 the crabs of various current accessions, notably of large collections 

 from California and Japan, including Formosa. Mr. Waldo L. 

 Schmitt, curator of marine invertebrates, has had but little time 

 left from routine duties for research work. The first installment, or 

 part, of a report on the Macrura and Anomura of the Australian- 

 Museum, collected by the Endeavour^ covering the families Peneidae, 

 Campylonotidae, and Pandalidae, has been completed. The reports 

 on the Macrura and Anomura of the American Museum Congo expe- 

 dition and the Barbados-Antigua expedition of the University of 

 Iowa are still in progress. Mr. C. R. Shoemaker, assistant curator, 

 has given much of his time to the working up of several large lots of 

 Amphipods, which were sent to the Museum for identification. Sev- 

 eral reports were completed and published as shown in the bibli- 

 ography. Dr. Harriet Eichardson Searle, collaborator, I am happy 

 to report, has resumed her studies on the Isopoda and has recently 

 completed a report on the collection of terrestrial isopods, secured 

 by Dr. E. J. Jakobsen in Java. Mr. Harry K. Harring, custodian of 

 rotatoria, has completed his report on the rotatoria of the Canadian 

 Arctic expedition and the first part of a report on the rotifers of 

 Wisconsin, which includes a revision of the Notommatid rotifers. 

 Both of these papers are now in press. The second part of the report 

 on Wisconsin rotifers is well under way. In addition, he has identi- 

 fied a number of interesting collections. 



Dr. William H. Dall's completed summary of the West Ameri- 

 can collection from San Diego to the Polar Sea was published as 

 Bulletin 112 of the United States National Museum. It includes 

 the results of research and collections made by west-coast contrib- 

 utors and the honorary curator since 1865, amounting to more than 

 2,100 species and varieties. A number of interesting new forms, 

 including a second species of the peculiar South American Felipponea, 

 were received and described during the year, as indicated in the bib- 

 liogi-aphic list. Most of the time not occupied by routine matters 

 has been given to a monograph of the marine shell-bearing mollusks 

 of the Hawaiian Islands, based chiefly on the important collection 

 donated by Mr. D. Thaanum, of Hilo, Hawaii, and on the fisheries 

 steamer Albatross dredgings about the islands. This work is well ad- 

 vanced and only certain troublesome and prolific groups of minute 

 shells remain to be worked up of the material in hand. Mr. John 

 B. Henderson, a regent of the Smithsonian Institution, has been en- 

 gaged on a monograph of the Antillean land and fresh-water mol- 

 lusks. A list of the mollusks collected by the Barbados- Antigua ex- 

 pedition of the State University of Iowa has been begun. Considerable 

 time was devoted to the identification of east-coast mollusks sent in 

 by correspondents. In the little remaining time he and the curator 



