BIRDS FROM SIAM AND THE MALAY PENINSULA 287 



come from the central, eastern, and southeastern part of the country. 

 Apparently it has not been recorded from Peninsular Siam. 



CHIBIA HOTTENTOTTA BREVIROSTRIS Cabanls 



Chibia hrevirosiris Cabanis, Museum Heineanum, Heft 1, p. 112, 1850 (China). 



One male, Doi Nangka, November 10, 1930. 



The chief difference between the resident and winter visitant form 

 of this drongo is the shorter and slenderer bill of the latter. 



The Doi Nangka male measures: Wing, 165; tail, 135.5; culmen, 

 33.5 mm. 



Eight males from China measure: Wing, 166-181 (171.9); tail, 

 135-154 (138.3); culmen, 30-34.5 (32.6) mm. Eight females from 

 China: Wing, 161-175 (168.2); tail, 131-145 (138.2); culmen, 31-35 

 (32) mm. 



The form breeds all over China and migrates south to winter, but 

 just how far is not definitely known. So far only Tonldn and Siam 

 have been recorded. 



De Schauensee ^° says that this form replaces the typical one in 

 the highlands of northern Siam. His specimens were all taken on 

 Doi Sutep, 5,500 feet, in the latter part of December. On his third 

 expedition ^^ he took two males at Chiengdao, 4,600-5,000 feet, 

 January 12, 14, and a female at Prakanong, in the lowlands of central 

 Siam, January 26. Deignan ^^ says that it appears on the summit of 

 Doi Sutep in October, 



BHRINGA REMIFER LATISPATULA de Schauensee 



Bhringa remifcr latispatula de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 

 vol. 81, p. 475, 1929 (Doi Sutep, northern Siam). 



One male and three females, Khun Tan, 4,000 feet, October 20, 22, 

 1929, August 30, 1930, February 19, 1932; one male and one female, 

 Khun Tan Mountains, 3,000-4,300 feet. May 12, 18, 1933; one female, 

 Sobpung, December 21, 1932; one male, Doi Nangka, November 19, 

 1930; one male and one female, Pang Meton (Doi Nangka), May 1, 

 3, 1931; three females, Doi Hua Mot, August 13-24, 1934. 



A topotypical specimen of B. r. tedirostris has not been available 

 for examination, but as de Schauensee ^^ still believes his race to be 

 valid, I recognize it also. 



Only three males and four females in the above series have the outer 

 tail feathers suitable to measure. The three males measure: Wing, 

 139-144 (141.3); outer tail feather, 498-500 (498.7); spatula, 87-101 

 (95.2); middle tail feathers, 120-124 (121.7); culmen, 20.5-21.5 (21) 



w Proc. Acad. Nst. Sci. Philadelphia, vol. 81, p. 553, 1930. 

 " Proc. Acad. Nat. Sci. Philadrlphia, vol. 86, p. 227, 1934. 

 «» Journ. Siam Soc. Nat. Nut. Hist. Suppl., vol. 8, p. 148, 1931. 

 M Proc. Acad. Nat. Sci. PhUadelphia, vol. 86, p. 227, 1934. 



