54 REPORT OF NATIONAL MUSEUM, 1921. 



Hyman, acting director of the Beaufort station of the bureau. Such 

 material 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 ampliipod crustacea, part of the material secured by the Ameri- 

 can Museum Congo expedition, was received from that institution, 

 Miss M. J. Eathbun and Mr. C. E. 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 



