BIRDS FROM SIAJNI AND THE MALAY PENINSULA 351 



is founded upon a single specimen collected by Dr. Smith at Ban 

 Keng Sadok, March 1, 1929; since this was first written de Schauensee 

 also reports it from Laos. 



This form is more lightly colored on the head and back, and the 

 dark shaft streaks of the throat and chest are very fine and almost 

 obsolete. 



ALCIPPE NIPALENSIS FBATERCULA Rippon 



Alcippe fratercula Rippon, Bull. Brit. Orn. Club, vol. 11, p. 11, 1900 (hills of 

 southern Shan States). 



One male and one female, Doi Angka, 5,000-8,000 feet, December 4 

 and 5, 1928; four males and two females, Doi Nangka, November 3-17, 

 1930, and April 25-26, 1931 ; one unsexed. Pang Meton (Doi Nangka), 

 May 2, 1931; nine males and one female, Doi Hua Mot, August 20- 

 September 6, 1934; one female, Khun Tan Mountains, 3,000 feet, 

 May 10, 1933. 



The series from Doi Hua Mot are molting and the gray of the pileum 

 is much faded. 



De Schauensee ^^ took a large series at Chiengmai and Chiengdao 

 and says that it is an excessively common bird in the mountains of 

 northern Siam above 4,000 feet; it has been taken on Doi Sutep by 

 several collectors. 



The form ranges from the Bhamo Hills and Shan States, Burma, to 

 Tenasserim and northern Siam. 



This form resembles the Chinese races (yunnanensis, hueti, and 

 davidi) rather than the nominate form, which is whiter below. A. n. 

 fratercula is quite distinct from A. n. peracensis. The lower parts in 

 the former are cinnamon-buff instead of being almost white with only a 

 slight buffy wash on chest and flanks. 



ALCIPPE NIPALENSIS PERACENSIS Sharpe 



Alcippe peracensis Sharpe, Proc. Zool. Soc. London, 1887, p. 439 (Larut Moun- 

 tains, Perak). 



One immature male. Ban Hui Ta, Kao Luang, Nakon Sritamarat, 

 July 12, 1928. 



This specimen differs from the adult from the Malay States in 

 having the pileum washed with brown; in lacking the black stripe on 

 each side of the head; and in having the chest and flanks washed with 

 grayish. It is probably an immature of this form, as the chest and 

 belly are white. Possibly it represents an undescribed form. 



The form has not been recorded from Siam before. 



The race ranges from the mountains of the Malay States northward 

 to Nakon Sritamarat. Very probably it will be found on other 

 mountains of Peninsular Siam when they have been better explored. 



»« Proc. Acad. Nat. Sci. Philadelphia, vol. 80, p. 103, 1934. 



