330 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



The form occurring in northern and eastern Siam is more heavily 

 streaked on the chest and the pileum is darker brown than in subochra- 

 ceum, which ranges from central and southwestern Siam and southern 

 Tenasserim south through Peninsular Siam to the Federated Malay 

 States. 



PELLOKNEUM RUFICEPS VIVIDUM La Touche 



Pellorneum nipalense vividum La Touche, Bull. Brit. Orn. Club, vol. 42, p. 17, 

 1921 (Hokow, southeastern Yunnan). 



One male, Ban Kiriwong, July 11, 1928; one female, Knong Phra, 

 April 10, 1929; two males, Ivliun Tan, August 27-28, 1930; one female, 

 Aranya, July 17, 1930; one female. Ban Nam Fien, Nan, April 18, 

 1930; one female, Lat Bua Kao, July 31, 1929; two males, two females, 

 and one immature, Pak Chong, eastern Siam, February 10, 1925, May 

 11, 1925, May 6, 1926, and November 20, 1929; one immature female, 

 Tha Chang, near Pak Chong, March 21, 1927; one male, Nong Khor 

 near Sriracha, March 19, 1926; one female, Sriracha, April 20, 1934; 

 one male, Nong Mong, Muang Krabin, August 24, 1925; one male, 

 Hupbun, November 15, 1931. 



This form is darker above and the streaks on the chest are broader 

 than in suhochraceum. It apparently ranges from northern Siam 

 eastward through eastern Siam to Laos, Tonkin, southeastern Yunnan, 

 Annam, Cochinchina, and Cambodia. 



PELLORNEUM RUFICEPS SMITHI Riley 



Pellorneum smithi Riley, Proc. Biol. Soc. Washington, vol. 37, p. 129. 1924 

 (Koh Chang Island, southeastern Siam). 



One female (the type), Koh Chang, April 4, 1924; one female 

 Kao Sabap, November 7, 1933. 



The type is as much of a puzzle to me now as the day it was 

 described. It is much darker than either suhochraceum or vividum, 

 both above and below. The type was examined by Bangs and Van 

 Tyne, and they say it is very different from any other specimen 

 they had seen. They suggest that some of its peculiarities may be 

 due to the make of the skin," but this would not account for the 

 different color of the upperparts and flanks. 



The back and tail are cinnamon-brown, while in vividum they are 

 near saccardo umber; the pileum is deeper and the flanks also. It 

 may be only an example of erythrism or may turn out to be a local 

 race confined to southeastern Siam. For this reason I am listing 

 it separately. 



The female taken at Kao Sabap is almost as dark on the back 

 as the type, but below the streaks on the chest are not so broad, 

 nor are the flanks so deeply colored, and the breast and belly are 



u Field Mus. Nat. Hist. Publ., Zool. Ser., vol. 18. no. 3, p. 84, 1931. 



