OP THE NETHERLANDS. 197 



243. Phylloscopus trochilus (L.). [Fitis]. 

 10 specimens. 



244. Phylloscopus sibilatrix (Bechsteiu). [Fluiter], 



This species 1 did not receive in the latter years. In the 

 general collection there are no specimens from the Nether- 

 lands; in the collection van Wickevoort Crommelin are 

 three specimens. 



245. Phylloscopus superciliosa (Gmelin). [Grauwstuit- 

 boschzanger]. 



We possess no specimens from the Netherlands. This 

 species has been observed two or three times. 



246. Uypolais hypolais (L.). [Spotvogel]. 

 6 specimens. 



247. Acrocephalus arundinaceus (L.). [Groote karekiet]. 

 Of this common bird we did not receive a specimen. 



248. Acrocephalus strepera (Vieillot). [Kleine karekiet]. 

 2 specimens. 



249 . Acrocephalus palustris (Bechstein). [Boschrietzanger]. 



1 specimen. 



250. Calamodus schoenobaenus (L.). [Rietzanger]. 



2 specimens. 



251. Calamodus aquatica (Gmelin). [Waterrietzanger], 



No specimen killed in the Netherlands in the collection. 

 This species has been observed three times. Already in 

 1820 Temminck has mentioned the bird as being »très-rare 

 et accidentellement en Hollande". 



Notes from the Leyden Museum, Vol. XXX. 



