REPORT OF ASSISTANT SECRETARY. 25 
Dr. L. T. Chamberlain, an associate of the Museum, presented to 
the division of mollusks a collection of Naiades from upper Burma, 
which included a fine series of the largest existing species of fresh- 
water mussel. A large series of Japanese shells, contributed by Dr. 
W. H. Dall, and another similar series obtained by purchase, embrace 
about 400 species, many recently described. Other noteworthy dona- 
tions were about 540 species of South African shells, from Lieut. Col. 
W. H. Turton, of Bristol, England; about 250 Uruguayan shells, from 
Dr. F. Filippone, of Montevideo; over 1,000 Costa Rican and other 
Central and South American shells, from Dr. H. Pittier; a number of 
Mexican land shells from the collection of the agronomic bureau of the 
Mexican Government, through Prof. A. L. Herrera, and the type 
specimen of Scala mitchelli, from Texas, from Mr. J. D. Mitchell. 
The Museum collection of Mexican land shells has become one of the - 
finest in existence. 
Among many additions to the division of marine invertebrates, 
aside from the large transfers made by the Bureau of Fisheries, four 
exchanges are worthy of special mention, as follows: A collection of 
141 specimens of corals, including the types of 13 species, from the 
Bishop Museum, Honolulu; a series of 22 specimens of corals from 
the Cape Verde Islands, from Mr. J. Stanley Gardiner; 23 species of 
Pacific coast bryozoans, from Dr. Alice Robertson, and 14 species of 
Cumacea, from the west coast of Ireland, from the British Museum. 
The number of accessions received by the division of insects was 
312, comprising nearly 122,000 specimens. The gift by Mr. William 
Schaus of his collection of American butterflies and moths, numbering 
75,000 specimens, stands preeminent among all the accessions of the 
year, and adds immensely to the richness and importance of the 
national collection of Lepidoptera. Two thousand of the specimens 
came from Mexico, the remainder from North and South America. 
The Museum was also indebted to the Rey. Robert Brown, S. J., for 
important gifts of insects from the Philippine Islands, and to Prof. 
H. Maxwell-Lefroy for valuable contributions of East Indian para- 
sitic Hymenoptera. The collections transferred by the U. S. Depart- 
ment of Agriculture were, as usual, of great extent and value. The 
following six lots, comprising about 33,000 specimens, are especially 
noteworthy: 10,000 specimens from Texas, collected by Mr. H. 8S. 
Barber; 3,000 specimens from Central America, collected by Mr. F. 
Knab; 10,000 specimens from Guatemala, collected by Mr. E. A. 
Schwarz and Mr. H. 8. Barber; 5,000 specimens from the West 
Indies, collected by Mr. A. Busck; 3,000 Japanese insects from the 
exhibit at the St. Louis Exposition, presented to the Department by 
Mr. K. N. Ohashi, and 2,000 specimens from Plummers Island, Mary- 
land, collected by Messrs. Schwarz, Clemons, and Barber. Among 
exchanges may be mentioned 500 moths from the American Museum 
