BIRDS FROM SIAM AND THE MALAY PENINSULA 379 



Dr. W. L, Abbott collected the following specimens in the Malay 

 Peninsula: three males and four females, Trang (Prahmon, April 8 

 and 10, 1896; Lay Song Hong, December 21, 1896, and January 1^ 

 1897; Trang, January 27, 1897; Kao Soi Dao, 1,000 feet February 11, 

 1899); two males and one female, Trengganu (Tanjong Laboha, 

 September 29, 1900, and Tanjong Dungun, September 21, 1900); one 

 male, Endau River, east coast of Johore, June 26, 1901; one male, 

 Rumpin River, Pahang, June 20, 1902. He gives the soft parts as: 

 Iris clear brown, dark brown, or dark red; bill blackish, lower mandible 

 leaden; feet pale fleshy brown or dull orange. 



The species ranges from southern Tenasserim south through 

 Peninsular Siam to Singapore, Sumatra, Banka, and the Natuna 

 Islands. 



Robinson and Kloss ^^ record specimens from Tasan, Chumporn, and 

 this appears to be the northern limit in Peninsular Siam; they have 

 also recorded ^^ it from Kao Ram, 1,200 feet, Nakon Sritamarat. It 

 is uncommon in the north but commoner in the southern part of its 

 range. A closely related form is found in Borneo. 



MICROSCELIS PSAROIDES CONCOLOR (BIyth) 



Hypsipetes concolor Blyth, Journ. Asiat. Soc. Bengal, vol. 18, p. 816, 1849 (Ten- 

 asserim) . 



Two males and two females, Doi Angka, 6,000-8,000 feet. Decern-- 

 ber 4-6, 1928; seven males and eight females, Khun Tan, 3,000-4,300 

 feet, October 23, 1929, February 16-March 1, 1932, May 10, and 12,, 

 1933; four males and five females, Doi Nangka, November 18, 20,, 

 1930, May 1-5, 1931; two males, Doi Hua Mot, August 26, 29, 1934;: 

 one male, Doi Sutep, February 3, 1932. 



This form is very different from psaroides from the Himalayas but 

 is linked to it evidently by nigrescens of Assam. 



M. p. concolor has a wide range occurring from Tenasserim, eastern 

 Burma, Yunnan, and northern Siam, southeastward to Laos, Tonkin^ 

 and Ann am. 



Specimens from Yunnan seem to average slightly darker above,, 

 while the few examined from southern Annam are on the whole some-.- 

 what lighter, though individual specimens can be picked out of the? 

 fine Siamese series that match the southern Annam birds, yet there 

 are none so dark as the darkest Yunnan specimen. These are very- 

 variable birds, and it is unsafe to set up races on the strength of a 

 few specimens. 



One of the females from Doi Nangka, May 2, is immature and 

 quite different from an immature female previously described txoTt\ 

 Yunnan.^^ 



« Journ. Nat. Hist. Soc. Siam, vol. .■;, p. 272, 1924. 



w Journ. Federated Malay St(ite.s Mus., vol. 11, p. 61, 1923. 



»' Proc. U. S. Nat. Mus., vol. 70, art. 5, p. 22, 1926. 



