218 ' Mr. C. Boden Kloss on Birds [Ibis, 



This species extends through peninsular Siain to about 

 Penang. It is very common on the Butang Group, west of 

 the Langkawa Is., where it has the upper-parts much browner, 

 less olive, and the abdomen much paler — a difference that is 

 probably due to the action of sea-air. 



Southern specimens, however, appear to run larger 

 (wing 49-53), as all Gyldenstolpe's birds from northern Siam 

 and Koh Lak have a wing-length of 49 mm. or less. 



pf"114. Chalcoparia singalensis koratensis, subsp. nov. 



1 c? ad., 1 cJ imm., 2 ? ad., 1 ? juv. Lat Bua Kao. 



Iris crimson ; bill black ; feet olive, soles yellow. 



Males: T. L. 112, 112; W. 52, 51-5; B. f. g. 13-8, 

 13-8. 



Females : T. L. 105, 110, 112 ; W. 50-5, 50, 51 ; Ta. 146, 

 14-6, 15; B.f. g. 13-4, 13 5, 15. 



Rather smaller than C. s. singalensis* ; the rufous of 

 the Jbre^st terminating more sharply and not extending so 

 far downwards ; the abdomen of a considerably deeper 

 yellow (male intense "lemon yellow,'^ female intense " light 

 greenish yellow," Ridgway), the abdomen of the female 

 being of the same tone as the male of the typical form and 

 much brighter than the corresponding female. Also females 

 and young males are much paler above than corresponding 

 southern birds, the upper-parts being "yellowish oil-green" 

 against " dark Cerro-green " in fresh plumage. 



Types. Adult male and female collected at Lat Bua Kao, 

 E. Siam, on 15 October, 1916. 



I have been able to compare four birds from Java 

 (Nectarinia phcenicotis Temm.) and also a male from 

 Sumatra with Malayan birds. The former have, unfor- 

 tunately, been mounted and their colours are probably 

 somewhat degraded, but, allowing for this, I do not find 

 that birds from these three places differ in any respect 



* Chalcoparia singalensis (Gm.), supposed originally to have come from 

 Ceylon, is now known not to occur there, and Oberholser has therefore 

 designated Malacca as the typical locality (Smithsonian Miscellaneous 

 Collections, Ix. No. 7, p. 21, footnote). 



