512 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



16, 1928; one male, Kao Sabap, October 30, 1933; two males, Aranya, 

 July 13, 1930; one male, Nontaburi, March 22, 1924. 



This form is similar to C. s. interposita of Peninsular Siam, but the 

 brown of the throat ends rather abruptly on the chest, and the breast 

 is deeper, brighter yellow. 



Ten males from eastern and southeastern Siam measure: Wing, 

 52-55 (53.2); tail, 37-42 (39.4) culmen, 12-14 (13) mm. Nine males 

 from Peninsular Siam (interposita): Wing, 53-55.5 (54); tail, 38-41 

 (39.7); culmen, 13.5-14 (13.8) mm. 



C. s. koratensis ranges in Siam east of the Menam to southeastern 

 Siam, Laos, Tonkin, Annam, Cambodia, and Cochinchina. 



Herbert ^* found it breeding in Bangkok, Samkok, and Pakret, 

 nesting from February to July. 



CHALCOPARIA SINGALENSIS INTERPOSITA Robinson and Kloss 



Chalcoparia singalensis interposita Robinson and Kloss, Journ. Federated Malay 

 States Mus., vol. 10, pt. 3, p. 209, 1921 (Takuapa, west coast Peninsular 

 Siam). 



One male and one female, Bangnara, Patani, July 19, 1926; one 

 male, Bukit, Patani, January 26, 1931; one male, Nakon Sritamarat, 

 September 16, 1926; two males, Huey Yang, October 1, 1930; three 

 males, Tha Lo, Bandon, September 14, 25, 1931; one female, Koh 

 Lak, June 14, 1933; two males, Pran, April 1, 2, 1931; one male, Doi 

 Angka, 2,000 feet, December 8, 1928; one female, Chiengmai, Novem- 

 ber 25, 1928; one male, Kumpawapi, February 17, 1929; two males, 

 Muang Pai, December 17, 27, 1932. 



Dr. W. L. Abbott took two males in Trang, February 5, 1897 and 

 December 31, 1898; and one male, at Tanjong Badak, Tenasserim, 

 January 8, 1900. 



This form has the brown of the throat extending down onto the 

 chest and breast, ending in a rather indefinite manner. 



The few birds from northern Siam in the above series seem to go 

 with the Peninsular Siamese specimens. 



C. s. singalensis (type locality, Malacca) is confined to the Malay 

 States and apparently does not reach Peninsular Siam. There are 

 no male specimens of this form in the United States National Museum. 

 According to Robmson,'^ it is duller than interposita. 



C. s. interposita ranges from Patani, in the south, north through 

 Peninsular Siam and Tenasserim to northern Siam and probably the 

 Shan States. 



'4 Journ. Nat. Hist. Soc. Siam, vol. 6, p. 293, pi. 18, 1924. 

 »» The birds of the Malay Peninsula, vol. 1, p. 313, 1927. 



