360 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



I have seen no specimens from Nepal or Burma but have a specimen 

 from Fokien of griseiloris, and it most certainly is not that form, which 

 has the lores, cheeks, and underparts decidedly gray; in the present 

 form, they are grayish white. 



De Schauensee ^' compared a male from Khun Tan wdth a female 

 from Assam and states they agree perfectly. The specimens from 

 eastern Siam agree w^th those from northern Siam. 



Ten males from northern, central, and eastern Siam measure: 

 Wing, 61-70 (64.9); tail, 41-47 (43.6); culmen, 12-13 (12.2) mm. 

 Seven females: Wing, 61-66 (63.5); tail, 41-43 (41.8); culmen, 11.5- 

 12.5 (12) mm. 



The present form ranges from Nepal, Assam, and Burma to northern, 

 central, and eastern Siam. 



Deignan ^' found it on Doi Sutep from 2,700-4,000 feet. I do not 

 believe tliis is primarily a mountain bird, however, but ranges dowTi 

 to sea level. 



ERPORNIS ZANTHOLEUCA INTERPOSITA Hartert 



Herpornis xaniholeuca interposita Hartert, Bull. Brit. Orn. Club, vol. 38, p. 20, 

 1917 (Temangoh, Upper Perak). 



One female, Bangnara, Patani, May 10, 1924; one male, Kao Sol 

 Dao, Trang, December 30, 1933; one female. Waterfall, Trang, 

 August 25, 1933; one male, Kao Luang, 2,000 feet, Nakon Sritamarat, 

 July 16, 1928. 



Dr. W. L. Abbott collected six males and three females in Trang 

 (Prahmon, April 10, 1896; Lay Song Hong, September 10-December 

 20, 1896; Kao Nok Ram, 2,000 feet, January 16, 1899; and Trang, 

 February 3, 7, 1897); four males and one female, Mergui Archipelago 

 (St. Matthew Island, January 15, 1900; SulHvan Island, February 3, 

 4, 1900; Domel Island, February 23, 1900); and one female, Rumpin 

 River, Pahang, June 11, 1902. He describes the soft parts as: Iris 

 brown or gray brown; upper mandible pale horn brown, lower pale 

 flesh}^; feet pale fleshy or fleshy white. 



A female shot b}-- Dr. Abbott in Trang, February 3, contained 

 nearly mature eggs. 



This form is distinguished from the northern race {zantholeuca) by 

 the longer, heavier bill, averaging slightly grayer below, the upper 

 parts more yellowish, and the underside of the tail darker wdth the 

 inner margins of the feathers with less yellow. 



Seven males from Peninsular Siam measure: Wing, 64-74 (68.3); 

 tail, 41-48 (44.3); culmen, 13-14 (13.6) mm. Four males from the 

 Mergui Archipelago: Wing, 68-72 (70.2); tail, 43.5-46.5 (45.2); 

 culmen, 13-14 (13.7) mm. Six females from the Malay Peninsula: 



»i Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 196, 1934. 

 M Journ. Siam Soc. Nat. Hist. Suppl., vol. 8, p. 138, 1931. 



