﻿OF THE NETHERLANDS. 



141 



35. Anser fahalis (Latham). [Rietgans]. 



It is impossible to me to draw a well defined line between 

 A. fahalis and A.f. arvensis Brehm [Akkergans] ; there are 

 all kinds of variation in the shape, length and coloration 

 of the bill and the white surrounding of the bill, which 

 all are only individual. We have a large number of bean- 

 geese shot in our country, 20 stuffed specimens and 9 skins 

 received in the latter years, which belong all to one species: 

 Anser fahalis (Latham). 



36. Anser erythropus (L.). [Dvverggans]. 



We did not receive this species in the latter time. The Mu- 

 seum possesses the following specimens captured in our country: 

 adult 2, 13 January 1865, Overijssel (Coll. van Wickevoort 



Crommelin, 230 — 1); 

 young 9? 7 January 1870, near Rotterdam; 

 adult 9? 3 November 1873, Overijssel (Coll. van Wickevoort 



Crommelin, 230—2); 

 adult cTi 6 November 1873, Overijssel (Coll. van Wickevoort 



Crommelin, 230—3); 

 young 9? 1^ October 1899, Eemnes, province Utrecht, 



presented by Mr. F. E. Blaauw, November 1899; 

 young cf, captured in Friesland. Purchased from the 



Zoological Garden at Rotterdam, February 1902. 



37. Anser alhifrons (Scopoli). [Kolgans]. 



Also this species we did not receive in the latter years, 

 though it is a common winter visitor. The Anser pallipes 

 de Selys syn. Anser alhifrons roseipes Schlegel seems to be 

 a domestic race of this species, as specimens bred in cap- 

 tivity often have pale red feet. According to Mr. F. E. 

 Blaauw (N. L. M. XV, 1893, p. 216) the latter is a hybrid 

 between A. alhifrons and A. anser bred in semi-confinement 

 by the goose catchers. 



38. Branta ruficollis (Pallas). [Roodhalsgans). 



In the collection is only one specimen from our country, 



jN'otes from thie Leyden IVIuseuixi, Vol. XXX. 



