452 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



It is with a good deal of hesitation that I assign these birds to this 

 race, as I have no specimens for comparison, but they do not fit any 

 other described form with an ohve-brown female. I have four males 

 from northern Siam before me, however, that have been identified 

 provisionally as C. w. whitei. The males of caentleijrons are much 

 darker blue above; below they are much darker, even the under tail 

 coverts sometimes being buffy. There is a little white on the belly 

 and generally on the under tail coverts. The two females from 

 Kao Lem are not exactly alike and may not both belong to this 

 species. Both are light brownish olive above, the heads with a 

 grayish tinge; the tail and tail coverts in one are cinnamon-brown; in 

 the other the tail is sepia and the tail coverts snuff brown. Below 

 one is ochraceous-tawny, only a little white on the belly; the other is 

 similar, except that the whole belly and lower breast are white, the 

 sides washed with ochraceous-buff. The Kao Sabap females have the 

 lower breast and belly white like the latter. 



The six males measure: Wing, 70-73 (71) ; culmen, 12-13 (12.8) mm. 

 The three females: Wing, 67-69 (68); culmen, 12.5-13 (12.8) mm. 



The form ranges from eastern and southeastern Siam to southern 

 Tenasserim and south through Peninsular Siam to the mountains of 

 the Malay States. Robinson and Kloss " record it from Tapli, 

 Pakchan, and say they have it from Kao Luang, Nakon Sritamarat, 

 and have found it common in the mountains of Perak and Selangor 

 at 2,000-3,000 feet. 



CYORNIS MAGNIROSTRIS Blyth 



Cyornis magnirostris Blyth, Journ. Asiat. Soc. Bengal, vol. 18, p. 814, 1849 

 (Darjeeling, India). 



Dr. W. L. Abbott collected a male and female on Domel Island, 

 Mergui Archipelago, February 23 and 25, 1900. 



The male is much like whitei in coloration, but the white area of the 

 belly is more extensive and the bill is much larger. The female is also 

 similar to whitei but is lighter on the throat and the bill is larger. The 

 male measures: Wing, 81; culmen, 14.5 mm. The female: Wing, 78; 

 culmen, 14 mm. 



The species ranges from Nepal to eastern Assam; Taho Plateau in 

 Tenasserim to the extreme south of that Province; and south in Penin- 

 sular Siam as far as Junkseylon. 



CYORNIS RUFIGASTRA RUHG ASTRA (Raffles) 



Aluscicapa rufigastra Raffles, Trans. Linn. Soc. London, vol. 13, p. 312, 1822 



(Sumatra). 

 Cyornis hanyumas calocephala Oderiiolser, Proc. Biol. Soc. Washington, vol. 33, 



p. 86, 1920 (Banka Island). 



One male, Singapore Island, May 18, 1899, collected by Dr. W. L. 

 Abbott. 



M Journ. Nat. Hist. Soc. Siam, vol. 5, p. 231, 1924. 



