171 



Further additions to the knowledge of the 

 Avifauna of East Sumatra 



Dr. L. F. de BEAUFORT. 



Dr. L. P. DE BussY presented the Zoological Museum of Amsterdam 

 with another collection of biixls from North East Sumatra, which 

 contains several species, new for the fauna of that island. This is 

 remarkable, as this part of the world has been thoroughly explored 

 by ornithologists in later years. Recently Robinson and Kloss 

 (Journ. Straits Branch Royal Asiatic Soc. N^. 81, 1920) have given 

 a critical list of all birds, known from there, mainly based on a 

 large collection made by Mr. A. F. C. A. van Heyst and further 

 on publications of Hartert, Salvadori, Parrot, de Bussy and the 

 present author. 



To make this list as complete as possible, I wish to draw attention 

 to a list of birds, collected by Mr. C. Waldeok and published by 

 me (Verslagen en Mededeelingen Ned. Ornithol. Ver. N*^. 6, 1909), 

 which contains 182 species, some of which do not appear in the 

 paper of Robinson and Kloss mentioned above. 



I am obliged however to make some rectifications of the hst of 

 AValdeck's collection, which I found to be necessary when working 

 at the present collection. 



As I had to work without any material for comparison, I hope 

 that my fellow-ornithologists will not be too hard on me when I 

 tell them, that the birds, formerly held by me to be Anuropsis 

 malaccensis HartL, were really Malacocmda sejnaria (Horsf.) and 

 what I called Trichosfoma rostratum Blyth is Erythrocichla bicolor 

 (Less.). This applies to my list of 1909 as well as to that of de Bussy 

 and myself from 1918 (Bijdragen tot de Dierkunde XXI). The former 

 therefore disappears from the hst of N. E. Sumatran birds, while 

 Aetliostoma rostratum has Ijeen recorded by Robinson and Kloss 

 (Journ. Straits Branch Royal Asiatic Soc. W. 80, 1919). 



In re-examining the birds which I thought to be Gisticola exilis 

 and mentioned under that name in the „Bijdragen", I came to the 



