REPORT OF THE SECRETARY 23 
About 20,000 specimens of fishes were received during the year, 
among which were the following large lots: About 3,800 from the 
Marianas, collected by the Naval Medical Research Unit No. 2; about 
the same number transferred from the United States Fish and Wild- 
life Service, 1,000 from Chile, and 2,800 from Louisiana and Texas; 
and 2,200 fresh-water fishes from southern California. Smaller lots 
containing much fine material, including many paratypes, came from 
Australia, Venezuela, Colombia, Guatemala, the Philippines, the 
South Pacific, California, and Baja California, through the generosity 
of various donors. 
Several large lots of insects were received, the most important one 
both scientifically and economically being a collection of more than 
10,000 mosquitoes and 4,000 slides of chigger-mites from various 
Pacific islands and Burma, transferred from the Naval Medical Re- 
search Unit No. 2 and the U. S. A. Typhus Commission. Another 
10,000 miscellaneous insects collected on Guam were contributed by 
various members of the armed forces. While cooperating with the 
Mexican Government in an economic geological survey in México, Dr. 
W. F. Foshag, the Museum’s curator of mineralogy and petrology, 
obtained 2,500 miscellaneous insects for the National Museum. The 
largest entomological accession of the year was a transfer of about 
140,000 specimens from the United States Department of Agriculture, 
a large part of which represents insects sent in by Army and Navy 
sources for identification. 
To the division of marine invertebrates came more than 5,000 new 
specimens. Of these about 1,250, mostly crustaceans, were sent by 
members or former members of the armed services stationed in the 
Pacific region, the Aleutian, Hawaiian, and Marshall Islands, Okin- 
awa, and Japan. Other accessions of interest included a lot of 950 
invertebrates collected in Guam, Rota, Okinawa, Pelelieu, and the 
Palau Islands and forwarded by the Naval Medical Research Unit 
No. 2; 25 barnacles from the Bureau of Ships; and small lots of 
crustaceans and leeches from the Army Medical Museum, the Army 
Medical School, and the Eighteenth Medical General Laboratory. 
Included in the material received in the division of mollusks were a 
considerable number of type specimens. Transfers from the Army 
Medical Museum, the Army Medical School, and the Navy Medical 
School yielded 850 mollusks, chiefly fresh-water gastropods, from the 
Philippines, Okinawa, and Guam. Over 4,000 Japanese and Philip- 
pine mollusks came from one donor, nearly 900 Philippine shells from 
another, 850 land and fresh-water shells from Virginia from another, 
and 1,840 Colombian mollusks from still another. In all, about 20,000 
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