100 A COLLECTION OF B1EDS FROM N. E. SUMATRA. 



$ , Bandar Baroe, Deli, N. E. Sumatra, 24th January 

 1918 [No. 953]. 



Wing, 2 , 121, 116, 127, 125; $, 122 mm. 



Slightly smaller than the average of specimens from the 

 southern Malay Peninsula where the race progressively in- 

 creases in size towards the north. 



100. Chrysophlegma mystacale, Salvad. 



Eobinson and Kloss, p. 147. 



3 S , 2 S imm, 3 2 , Bandar Baroe, Deli, N. E. Sumatra, 



13th April— 4th October 1917 [Nos. 250-1, 287, 



381-2, 414, 424, 441]. 

 $ , Brastagi, Simeloengan, N. E. Sumatra, 18th June 



1917 [No. 500]. 



$, Tengkeh, Simeloengan, X. E. Sumatra, 25th June 



1918 [No. 1049]. 



Wing, $ , 143, 146, 138, 145, 149 ; 9 , 144, 141, 140 mm. 



A mountain species, allied to Ch. wrayi from the Malay 

 Peninsula and Ch. ricketli from the south of China but dis- 

 tinct. The present specimens do not differ from those from 

 West Sumatra. 



101. Chrysophlegma mentale humii, Hargitt. 



Chrysophlegma mentale humii, Hartert, p. 19S. 



S vix ad., Toentoengan, Deli, X. E. Sumatra, 8th Feb. 

 1918 [No. 978].' 



Wing, $, 132 mm. 



This specimen is darker than a series from the Malay 

 Peninsula and differs even more widely from the Javan form 

 C. mentale (Temm.). 



102. Chrysocolaptes validus xanthopygius(Finsch). 



Eobinson and Kloss, p. 148. 

 Xylolepes validus, Hartert, p. 197. 

 8 , 2 , Deli Toewa, Deli, N. E. Sumatra, 7th May 1917 



[Nos. 342, 3]. 

 $ , 2 , Bandar Baroe, Deli, N. E. Sumatra, 14th April 



1917— 23rd January 1918 [Nos. 252, 943]. 

 Wing, S , 152, 151; 5, 142, 163 mm. 

 Subspecifically Bornean, Malayan and Sumatran birds 

 are quite distinct from the typical Javan bird which has the 

 rump in the male deep crimson not rich orange. 



103. Hemicercus concretus coccometopus(Keichenb.). 



Hemicercus sordidus, Hartert, p. 197. 

 $ , Tancljong Morawa, Serdang, N. E. Sumatra, 23rd 



April 1917 [No. 306]. 

 $ , Toentoengan, Deli, N. E. Sumatra, 17th November 



1917 [No. 602]. 

 $ , 3 $ , Deli Toewa, Deli, N. E. Sumatra, 9th February 



—6th May 1917 [Nos. 2, 3, 322, 341]. 

 Wing, $, 81, 84.5, 82; $, 80, 80, 81.5 mm. 



Jour. Straits Branch 



