54 REPORT OF NATIONAL MUSEUM, 1921. 
Hyman, acting director of the Beaufort station of the bureau. Such 
materia] is highly desirable, as the stages in the life histories of 
crustaceans present a field of investigation but little worked and 
about which little is known. A valuable lot of about 600 decapod 
and amphipod crustacea, part of the material secured by the Ameri- 
can Museum Congo expedition, was received from that institution, 
Miss M. J. Rathbun and Mr. C. R. Shoemaker, both of the National 
Museum, having worked up and reported upon the collections of the 
expedition. Similarly, 87 specimens, representing 57 species of 
decapod crustaceans, were received from the Australian Museum, 
Sydney, being part of the material gathered by the Endeavour expe- 
dition upon which a report by Miss Rathbun is now in process of 
publication. By exchange, 28 specimens, 9 species of fresh-water 
shrimps, part of the material upon which Dr. R. P. Cowles based 
his paper on the “ Palaemons of the Philippine Islands,” published 
in 1914, were obtained from the department of zoology of the Uni- 
versity of the Philippines, Manila. From Japan two collections of 
crustacea were received, namely, 56 from the Pescadores Islands, 
presented by the Institute of Science, Taihoku, Formosa, through 
Dr. M. Oshima, and 337 specimens from northern Japan, collected 
and donated by Dr. Madoka Sasaki, Hokkaido Imperial University, 
Sapporo. The types of several new species were also added as gifts 
by their discoverers or describers, thus two parasitic copepods de- 
scribed by Prof. C. B. Wilson, from the Venice Marine Biological 
Station, received through Prof. A. B. Ulrey; another parasitic 
copepod described by the same, and collected and presented by Prof. 
S. I. Kornhauser, Denison University; and one polychaete worm 
from Valdez Harbor, Alaska, described by Prof. A. L. Treadwell 
and collected by Lieut. Col. C. A. Seoane, United States Army, who 
donated the specimen. 
Mollusks—The most important accession of the year is a gift from 
Mr. Y. Hirase, Kioto, Japan, embracing 3,843 lots from the Japanese 
islands; in fact, according to Doctor Bartsch’s report, it is one of the 
most valuable accessions that has ever come to the division of mol- 
lusks. Together with the Thaanum collection and the material 
dredged by the fisheries steamer Albatross, it places the National 
Museum collection of Pacific mollusks “ above all other in the world.” 
It is the product of a lifetime’s efforts on the part of Mr. Hirase and 
a corps of private collectors employed by him. The actual number 
of specimens included in this splendid accession can not be given 
at the present time. as final unpacking awaits the receipt of printed 
blank labels and sufficient containers. About 2,500 mollusks from 
Hawaii. contributed by Dr. Paul Bartsch and Mr. John B. Hen- 
derson, make another valuable addition to our large collection from 
