92 A COLLECTION OF BIRDS FROM N. E. SUMATRA. 



S , Tandjong Slamat. Lankat, X. E. Sumatra, 19th Feb. 

 1918 [No. 1000]. 



Wing, 173, 174 mm. 



These birds appears to be the migratory Indian form and 

 not typical //. /. fugax, which was described from Java, but 

 in the absence of authentic specimens of the latter it is diffi- 

 cult to be certain. 



71. Cuculus concretus(S. Muell.). 

 Hartert, t. c. p. 199. 

 S ad. Deli Toewa, Deli, X. E. Sumatra, 2nd May 1917 



[Xo. 338]. 

 9 imm., Bandar Baroe, Deli, X. E. Sumatra, 23rd May 



1917 [Xo. 407]. 

 Wing, $ ad. 156 mm. 



We are inclined to regard these specimens as representing a 

 resident Malayan form of G. micropterus, just as C. insulinde 

 Hartert, is the resident tropical form of G. intermedins. 



12, Cuculus micropterus, Gould. 

 Gould, P. Z. S. 1837, p. 137. 

 $ , Deli Toewa, Deli, X. E. Sumatra, 6th February 1917 



[Xo. 6]. 

 $, Tandjong Slamat, Lano-kat, X. E. Sumatra, 19th 



February 1918 [Xo. 999]. 

 Wing, $ 18(3, 197 mm. 

 Almost Certainly a migrant. 



73. Penthoceryx sonnerati pravaata(Horsf.). 



Cacomantis sonnerati pravatus, (Horsf.). 

 Eobinson and Kloss, p. 135. 

 2,9, Polonia, Deli, X. E. Sumatra, 2nd May 1916— 



23rd April 1917 [Xos. 300, 797]. 

 2, Deli Toewa, Deli, X. E. Sumatra, 2nd April 1917 



[Xo. 202]. 

 Wing, 2 , 104, 109 ; 9 , 103 mm. 

 Ever}*where rather rare. 



74. Cacomantis sepulchralis sepulchraIis(S. Muell). 



Robinson and Kloss, p. 135. 



9 vix. ad. Polonia, Deli, 20th Xovember 1916 [Xo. 716]. 



Wing, $ , 104 mm. 



This bird can be distinguished from the succeeding by 

 its darker grey head, and by having the rufous .of the under 

 surface carried up almost to the chin. 



75. Cacomantis merulinus merulinus(Scop.). 



Stresemann, Xov. Zool. XIX, pp. 332-334 (1912). 



Cacomantis merulinus, Hartert, p. 199. 



2 2 , $ , Polonia, Deli, X. E. Sumatra, 19th Xovember 



1916— 26th April 1917 [Xos. 105, 316, 766]. 

 Wing, 2 , 97.5, 96; 2, 98 mm. 



Jour. Straits Branch 



