46 EEPORT OF NATIONAL MUSEUM, 1915. 



for a special study and for addition to the collection. There were 

 several favorable responses, the principal contributions coming from 

 the Hon. J. D. Mitchell, of Victoria, Tex.; Prof. H. A. Hill, of 

 Cumberland University, Lebanon, Tenn.; and Dr. W. K. Fisher, of 

 Leland Stanford Jimior University. 



The sorting of the Philippine moUusks and their classification by 

 families, as well as their registration and labeling, were concluded. 

 The same is true with regard to the White collection, while the label- 

 ing and recording of the Henderson collection of moUusks has been 

 continued steadily, with good progress, in the intervals of other 

 work. Marked advance was also made in the cataloguing in other 

 classes of invertebrates, most important being the relabeling, card- 

 cataloguing and systematic arrangement of the extensive collection 

 of crinoids, which aggregate some 2,500 entries. 



Dr. William PI. Dall, curator of mollusks, continued his revision 

 of the west American molluscan fauna, giving special attention to the 

 families Emarginulida3 and Semelidse, and the genus Nucella. A 

 brief report was made to the Brooklyn Institute of Arts and Sciences 

 on some mollusks collected during the expedition under its auspices 

 to South Georgia, in the antarctic region. Other results of Dr. 

 Dall's work completed during the year are indicated in the bibliog- 

 raphy. About one-half of the west American series of mollusks has 

 now been carefully revised, new material properly placed and the 

 nomenclature revised to date by Dr. Dall. 



Miss Mary J. Eathbun, associate in zoology, studied the spider 

 crabs (family Inschidse) from the expedition of the Bureau of 

 Fisheries steamer Albatross to the Philippine Islands in 1907-10, 

 and in the same connection named the unidentified specimens of this 

 family previously in the Museum. Forty-one new species were found 

 and described. Miss Eathbun also worked up the fresh-water crabs 

 (Pseudothelphusina?) obtained at Santa Marta, Colombia, by the 

 Bryant Walker expedition, and reported on a small collection of 

 crabs secured by the Australian Antarctic expedition of 1911-14, 

 under the direction of Sir Douglas Mawson, as a contribution to the 

 memoirs of that exploration. She likewise determined the extensive 

 collection of decapod crustaceans, including several new forms, 

 obtained during the Tomas Barrera expedition of 1914 to the north- 

 west coast of Cuba, and identified large series of material sent from 

 Japan by Mr. T. Urita, from Brazil by Dr. H. von Ihering, and from 

 the coast of Chile, collected by Dr. and Mrs. J. N. Eose. Her re- 

 searches on fossil decapod crustaceans are referred to elsewhere. 



Dr. Paul Bartsch, curator of the division, completed his report on 

 the Turton collection of South African marine mollusks and other 

 shells from the same region preserved in the Museum, besides ac- 



