248 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



1933; two males and three females, Ta Fang, January 17, 1933; two 

 males and one female, Hupbon, November 1, 2, 1931 ; two males, Huey 

 Yang, Sriracha, August 6, 1932; one male and one female, Nong Yang, 

 near Sriracha, October 24 and November 16, 1931; one male and two 

 females, Kao Semmg, Krat, October 17, 1928; two females, Kao 

 Sabap, November 20, 1933; one male and one female, Sichol, Bandon, 

 September 3, 1929, and May 29, 1930; two males and two females, Tha 

 Lo, Bandon, September 16 and 28, 1931 ; one male, Kao Luang, Nakon 

 Sritamarat, July 17, 1928. 



Dr. W. L. Abbott collected sLx males and three females, Trang 

 (Prahmon, April 8, 1896; Tyching, July 21, 1896; Lay Song Hong, 

 August 24-December 5, 1896, and January 1, 1897; near Kao Nom 

 Plu, February 27, 1897; Kao Soi Dao, 2,000 feet, February 11, 1899); 

 one female, Endau River, east coast of Johore, June 30, 1901. Dr. 

 Abbott gives the colors of the soft parts as: Iris dark brown; feet 

 black; orbital sldn dull red; bill dull red, fleshy white at base, horny 

 blue at tip. 



De Schauensee originally described this bird from three specimens 

 with white or very nearly white throats. The United States National 

 Museum has a female from Tenasserim and a male from Raheng, 

 Siam, in similar plumage. Later these were thought to be individual 

 variations, and they probably are; nevertheless on his last expedition 

 de Schauensee ^^ secured additional material, and while no more were 

 secured lilce the type series, he found upon comparison with Sumatran 

 specimens that the northern Siamese bird is separable by its paler 

 throat, deeper black plumage, both above and below, and its dusky 

 chin and upper throat. The series collected by Dr. Smith confirms 

 this. The specimens secured by Dr. Abbott in Trang are intermediate 

 but nearer the northern race and for the present are placed -wnth it. 

 The Trang birds are blacker than a series from Sumatra; the throats 

 average considerably lighter but are darker than northern Siamese 

 specimens. The female from Johore resembles Trang specimens. 

 Two specimens from Daban, southern Annam, are like the northern 

 Siamese skins. 



Two immature males taken by Dr. Smith at Huey Yang, Sriracha, 

 August 6, have the throat and chest dusky, only a few pale yellowish 

 feathers appearing on the upper throat. The apparently adult birds 

 with white or nearly white throats may be birds in their first adult 

 plumage. 



The form ranges from northern Siam to Tenasserim and down Penin- 

 sular Siam to the Malay States, east to Laos, Cochinchina, and 

 northern and southern Annam. It occurs nearly all over Siam proper 

 and down Peninsular Siam to Trang or farther. 



11 Proc. Acad. Xat. Sci. Philadelphia, vol, 86, p. 245, 1934. 



