BIRDS FROM SIAM AND THE MALAY PENINSULA 467 



Mergiii Archipelago (High Island, December 31, 1900, and vSt. 

 Matthew Island, December 24, 1903). Four males are in the white 

 plumage. 



This bii'd breeds in China and migrates late in summer to Siam and 

 south in the Malay Peninsula to Sumatra. 



The form has a shorter bill than the resident race indochinensis. 

 The culmen in 10 males measures 16-18 (16.9) mm. 



TERPSIPHONE SABABENSIS Riley 



Terpsiphone sababensis Riley, Proc. Biol. Soc. Washington, vol. 47, p. 155, 1934 

 (Kao Sabap, southeastern Siam). 



One male, Kao Sabap, November 21, 1933. 



This species was described as follows: Wholly dull black with a 

 bluish sheen in certain lights; belly white; under tail coverts white, 

 the longer ones centered broadlj^^ with light grayish olive, and the 

 basal ones with wood brown; under wing coverts black; thighs black. 

 Wing, 86.5; tail, 95; culmen, 16 mm. 



This species is similar to T. periophthalmica, of the northern Philip- 

 pine Islands, but is smaller, the tail is less graduated, the center 

 feathers only 6 mm longer than the next pair, and there is no fleshy 

 eye ring. The type has two or three russet feathers in the scapulars 

 on the right side, showing that the immature and probably the female 

 have a brown plumage like most of the genus. 



T. atrocaudata atrocaudaia, of Japan, winters to some extent in 

 Siam, but the male of this species has a dark maroon-purple mantle, 

 and both the belly and breast are white; it is also a larger bird (wing, 

 over 90; culmen, 17 or more mm), with a fleshy eye ring and a long 

 graduated tail. 



PHILENTOMA VELATA CAESIA (Lesson) 



Monarcha caesia Lesson, Rev. Zool., 1839, p. 167 (Sumatra). 



One male, Kao Luang, Nakon Sritamarat, July 17, 1928; one male 

 and one female, Sichol, Bandon, May 23, 1930; two males and one 

 female, Kao Soi Dao, Trang, December 26-29, 1933. 



Dr. W. L. Abbott collected four males and one female, Trang (Lay 

 Song Hong, September 1-12, 1896; Trang, February 3, 1897; Kao 

 Soi Dao, 1,000 feet, February 10, 1899); one male, Rumpin River, 

 Pahang, June 2, 1902. He gives the soft parts as: Iris red, bill and 

 feet black. 



Dr. Hartert ^ has fixed the type locality of Drymophila velata 

 Temminck as Java ; no specimens from that island have been available 

 for comparison. The only male examined from Borneo is a somewhat 

 lighter blue than any male in the Peninsular Siam series or in a single 

 male from Sumatra. 



» Nov. Zool., vol. 9, p. 553, 1902. 



