4 BULLETIN 18 8, UNITED STATES NATIONAL MUSEUM 



sular Siam and on Koh Chang in the Gulf of Siam. Most of his mate- 

 rial was sent to Calcutta and was there studied and reported on by 

 Dr. Sunder Lai Hora, of the Indian Museum ; some of the specimens, 

 retained in Siam, reached the Siamese Bureau of Fisheries and were 

 examined by the present writer. 



The British Museum is an important depository for Thai fishes, 

 obtained by donation, purchase, or otherwise over a long period of 

 time. Through the courtesy of the museum authorities, the writer 

 was able to examine all desired material and to make comparison with 

 specimens taken to London for this purpose. The major earlier col- 

 lections of Siamese fishes in that museum are (1) the Mouhot collection, 

 obtained by purchase in 1859, registered in 1861 ; (2) the Jamrach col- 

 lection, purchased, registered in 1862; (3) the Schomburgk collection, 

 made by Sir Kobert Schomburgk, British consul at Bangkok, regis- 

 tered in 1865 ; (4) the Peters collection, received from Prof. W. C. H. 

 Peters in 1868; (5) the Siamese Museum collection, presented by the 

 museum, registered in 1897; (6) the Flower collection, made by Capt. 

 Stanley S. Flower, registered in 1898; and (7) the Chumporn collec- 

 tion, presented by H. R. H. Prince Chumporn, Siamese minister to 

 England. Of special interest is the small lot of fishes obtained by 

 Henri Mouhot in his pioneer travels in 1858-60, including the types 

 of new species described by Giinther. British travelers, explorers, 

 and residents in Siam contributed numerous specimens in recent years. 



Of great interest and value have been the fish collections made for 

 the United States National Museum by H. G. Deignan during the 

 years 1935-37. All his material came from fresh water, much of it 

 from localities in Northern Thailand from which no fish specimens 

 had previously been taken. Mr. Deignan's collections, comprising 

 many forms, have been studied in Washington and are reported on 

 herein. A valuable part of the Deignan collections was obtained by 

 A. R. Buchanan and P. D. Harrisson of Chiengmai, from the Mechem, 

 a tributary of the Meping, and various affluents, from which no pre- 

 vious fish specimens had been received. 



The Museum of Comparative Zoology has courteously made avail- 

 able for study and report a collection of fishes obtained in 1937 at 

 Chiengmai and on Doi Angka, Northern Thailand, by the Harvard 

 Primate Expedition, Harold J. Coolidge, Jr., director. This collec- 

 tion, though small and from waters where fishes had been obtained 

 by others, was of considerable interest and contained representatives 

 of species regarded as new. The information afforded by a study of 

 this collection has been incorporated in the present catalog and a set 

 of duplicates was presented to the United States National Museum. 



In addition to the knowledge of Siamese fishes obtained by observa- 

 tion in the field, in local aquaria, and in markets, and by the study of 



