378 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



available from Tonkin, the Siamese and Tonkin races will likely be 

 found to be the same. 



This form is quite different from cinnamomeoventris. The back is 

 dull citrine rather than buffy clive; below the breast and belly are 

 streaked with a clearer, deeper yellow; the under tail coverts are 

 ochraceous-tawny rather than clay color. 



This is so different from the olivacea group that I am inclined to 

 believe it belongs to a different species. 



This form ranges apparently from the Shan States, Burma, and 

 Yunnan through northern Siam to Tonkin, Cocliinchina, Laos, and 

 Cambodia. 



Deignan " found it to range on Doi Sutep from 2,000 to 3,500 feet; 

 Aagaard " took a male on the same mountain at 4,600 feet. Dr. 

 Smith's series illustrates the range of the species in Siam fairly well. 

 In eastern and southeastern Siam it probably occurs at lower ele- 

 vations. 



TRICHOLESTES CRINIGER CRINIGER (BIyth) 



Brachypodius (?) criniger Blyth (A. Hay MS.), Journ. Asiat. Soc. Bengal, vol. 14, 

 p. 577, 1845 (Malacca). 



One female, Sichol, Bandon, September 1, 1929; three males and two 

 females, Kao Soi Dao, Trang, December 22-30, 1933. 



Dr. W. L. Abbott collected two males and one female at Lay Song 

 Hong, Trang, August 15 and September 28 and December 24, 1896. 

 He gives the bill as leaden, black along the culmen; feet pale greenish, 

 fleshy or pale fleshy brown, claws horn brown. 



This form ranges from southern Tenasserim south tlirough Penm- 

 sular Siam to Singapore and some of the islands of the China Sea as far 

 as the Natunas. In Peninsular Siam it has been recorded from as far 

 north as Tapli, Pakchan, and Tasan, Chumporn, by Robinson and 

 Kloss.'* Closely related forms occur in Sumatra and Borneo. 



This genus is remarkable for the long hairlike feathers springing 

 from the center of the upper back just below the nape. The feet seem 

 to be very weak for a bird of its size. 



Apparently it is rare in the northern part of its range, becoming 

 commoner in the south. 



ALOPHOIXUS PHAEOCEPHALUS (Hartlaub) 



Ixos (Trichixos) phaeocephalus Hartlaub, Rev. Zool., 1844, p. 4C1 (Malacca). 



One female. Ban Huey Ta, Kao Luang, Nakon Sritamarat, July 12, 

 1928; one female, Sichol, Bandon, May 26, 1930. 



" Journ. Siam Soc. Nat. Hist. Suppl., vol. 8, p. 140, 1931. 



" Ibid., p. 242. 



M Journ. Nat. Hist. Soc. Siam, vol. 5, p. 272, 1924. 



