BIRDS FROM SIAM AND THE MALAY PENINSULA 345 



The two specimens from Doi Nangka (female first) measure: Wing, 

 59-61; tail, 51-54; ciilmen, 16.5-17 mm. Seven males and two fe- 

 males from Trang (dipora): Wing, 56-62 (58.9); tail, 41-52 (46.5); 

 culmen, 14.5-16.5 (15.3) mm. Four males and one female from 

 Selangor and Linga Island (damsoni): Wing, 55-62 (59.2); tail, 

 44.5-49 (47.4); culmen, 15-16.5 (15.7) mm. 



STACHYRIS ^fIGRICEPS DIPORA Oberholser 



Stachyris nigriceps dipora Oberholser, Smithsonian Misc. Coll., vol. 74, no. 2, 

 p. 7, 1922 (Kao Soi Dao, Trang). 



Three males, Kao Soi Dao, Trang, December 22-30, 1933. 



Dr. W. L. Abbott collected four males and two females in Trang 

 (Kao Nok Kam, 2,000-3,000 feet, January 9-16, 1899; Kao Soi Dao, 

 2,000 feet, February 2, 1899; and hills of Trang, 1,000 feet, February 

 18, 1897). He gives the soft parts as: Iris pale brown, brownish 

 yellow, or dull yellow; upper mandible dark horny or black, lower 

 mandible leaden blue at base; feet dark leaden or greenish leaden. 



The above series is paler above and below than a series of four males 

 and one female of davisoni from Selangor and Linga Island, Rhio 

 Ai"chipelago. While the differences are sHght, they seem to be fairly 

 constant in the specimens examined. 



S. n. davisoni is likely confined to the Malay States, and the present 

 form ranges from Trang northward to southern Tenasserim. Robin- 

 son and Kloss ®^ record it from Tapli and Tasan, which is as far north 

 as there are any records from Peninsular Siam. 



STACHYRIS NIGRICOLLIS ERYTHRONOTUS (BIyth) 



Timalia enjthronotus Blyth, Journ. Asiat. Soc. Bengal, vol. 11, p. 793, 1842 

 (Singapore Island). 



One female, Buldt, Patani, January 24, 1931. 



Dr. W. L. Abbott collected the following: One male, Prahmon, 

 Trang, Ajml 8, 1896; one male, Trang, January 3, 1897; one male, 

 Rumpin River, Pahang, Jidy 12, 1902; one female, Endau River, east 

 coast of Johore, July 10, 1901; one unsexed. Province of Wellesley, 

 Straits Settlements (purchased, no date). He gives the soft parts as: 

 Iris red; bill black, base of lower mandible leaden blue; feet black. 



The above series averages darker above than four males from 

 Borneo and one male from eastern Sumatra; below there is little or 

 no difference. It is not a well-marked race. 



There seems to be little difference in size, except that the mainland 

 form seems to have a somewhat larger bill. Two males, two females, 

 and one unsexed from the Malay Peninsula measure: Wing, 66-74 

 (69); tail, 46-54 (49.6); culmen, 18-19 (18.4) mm. Four males from 



»' Journ. Nat. Hist. Soc. Siam, vol. 5, p. 196, 1924. 



