202. Mr. C. Boden Kloss 07i Birds [Ibis, 



is attained; otherwise we must assume that the feathers 

 change colour during their growth. 



In the two young birds the throat is clad with soft^ dull, 

 yellow feathers beset with three or four of glistening orange- 

 red ; the heads of these birds are brown, sprinkled with the 

 black feathers of the mature plumage. 



The assumption of the throat-colours in the three birds — 

 montis of Borne©, flavivetitris, a,nd johnsoni — is interesting. 

 In montis the throat remains yellow ; in flaviventris it is 

 first yellow and then becomes black ; while in johnsoni it 

 is first yellow, next black, and, finally, red. 



TlMELIID^. 



■4r 85. Pellorneum suhochraceum Swinh. 



2 (J . Lat Bua Kao. 



2 c? , 1 ? . Koh Lak. 



Iris hazel or crimson ; maxilla brown ; mandible — proximal 

 half yellow, distal portion fleshy, pale grey, or brown ; feet 

 fleshy or yellowish-fleshy. 



Males : T. L. 162, 170, 166; W. 65, 67, 68, Q7 . 



Female: T. L. 155; W. 63. 



This bird is subject to a good deal of individual variation, 

 and the specimens in the present small series differ con- 

 siderably in the amount of the sandy sufl'usion on the 

 under-parts and size of the dark breast-stripes. 



-"I 86. Malacocincla abbotti abbotti Blyth. 



Turdinus abbotti Robinson, Ibis, 1915, p. 749. 



2 J , 2 ? . Lat Bua Kao. 



Iris hazel or brown ; maxilla blackish ; mandible pale 

 blue-grey ; feet fleshy or brownish-fleshy. 



Males: T. L. 165, 151 ; W. 73, 70. 



Females: T. L. 152, 148 ; W. QQ, 66. 



This race (typical locality Arakan) extends down the 

 Malay Peninsula about as far as Penang ; south of that it 

 is replaced by a very slightly difl'erentiated form, M. a. 

 olivacea (Strickl., typical locality '' Malacca ■") . 



1 found it very common in 1914-15 in the extreme 



