BIRDS FROM SIAM AND THE MALAY PENINSULA 441 



The Doi Nangka specimen is molting. It is darker and less ful- 

 vous above, the head inclining more to grayish; below it is whiter 

 and less buffy than a male from Yunnan taken in March. The latter 

 has a much longer tail. The Nangka bird is smaller, but this is 

 probably due to the difference in sex. The male taken at Doi Hua 

 Mot has the chest streaked with black, more so than any specimen 

 of the species examined by me. 



Deignan ** records it from Doi Sutep, 4,500 feet to summit. De 

 Schauensee ^^ collected it both at Chiengdao and Chiengmai and 

 states that it is common in clearings on the mountains. 



This form ranges from Yunnan south through Burma to Tenasserim 

 and northern Siam and east through southern China to Tonkin and 

 Laos. A closely related form, S. s. klossi Hachisuka, occurs in south- 

 ern Annam and Cochinchina. 



SUYA CRINIGERA COOKI Harington 



Suya crinigera cooki Harington, Bvill. Brit. Orn. Club, vol. 31, p. 109, 1913 

 (Thayetmyo). 



One unsexed, Chantuk, June 12, 1934. 



K^oss took five specimens at Lat Bua Kao, four of which he recorded 

 as Prinia inornata hlanfordi}^ Two of these were sent to the United 

 States National Museum. They are in very worn plumage and do not 

 belong to the genus Prinia at all, but to Suya. They are fall-taken 

 birds and are close to, if not identical with, a spring-taken pair from 

 Dran, southern Annam, identified by Robinson and KIoss as of this 

 race. The unsexed bird from Chantuk is grayer above and the 

 streaks darker and better defined than the Lat Bua Kao specimens; 

 the bill is black in the former, brown in the latter in the skin. 



The form ranges from the Shan States, Burma, to Thayetmyo, 

 eastern Siam, Yunnan, Cambodia, southern Laos, and southern 

 Annam. 



The species has been divided into a number of forms. 



PRINIA FLAVIVENTRIS FLAVIVENTRIS (Delessert) 



Orthotomus flaviventris Delessert, Rev. Zool., p. 101, 1840 (Boltan ou Boutfin). 



One female, Bangnara, Patani, July 19, 1926; tv/o males and one 

 female, Nakon Sritamarat, September 21, 24, 1926; one male and 

 one female. Bung Borapet, July 1, 1932; also a set of three eggs at the 

 latter place and date. 



Dr. W. L. Abbott collected the following: Two males, Tyching, 

 Trang, July 4, 1896; three males, the Dindings, Straits of Malacca, 

 April 12, 14, 1900; one male, Tanjong Kalong, Singapore, July 8, 



18 Journ. Siam Soc. Nat. Hist. Suppl., vol. 8, p. 150, 1931. 

 i» Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 231, 1934. 

 M Ibis, 1918, p. 211. 



