220 DUTCH AND ENGLISH BIRDS. 
(Clangula islandica) (Gmelin). 
(Clangula albeola) (Linn). 
Genus Cosmonetta. 
(Cosmonetta histrionica) (Linn.). 
Genus Marelda. 
Harelda glacialis (Linn.). 
An irregular winter visitor to Holland. A winter visitor 
to the Brit. Isl., breeding in Shetland in small numbers. 
Genus Heniconetta. 
(Heniconetta Stellert) (Pallas). 
Genus Somateria. 
Somateria mollissima (Linn.). 
A winter visitant to Holland, especially to the northern 
coasts and on the Zuiderzee. Breeds from the Fern Islands 
northwards. Elsewhere a winter visitor to the coast of the 
British islands. 
(Somateria spectabilis) (Linn.). 
Genus Oedemia. 
Oedemia nigra (Linn). 
A numerous and regular winter visitor to Holland. 
A winter visitor to the Br. Islands, breeding in the 
north of Scotland. 
Oedemia fusca (Linn.). 
A winter visitant to Holland, but less numerous than 
Oedemia nigra. 
A winter visitor to the coasts of the Br. Isl., sometimes 
suspected of breeding in Scotland (H.S). 
(Oedemia perspicillata) (Linn.). 
Genus Erismatura. 
Erismatura leucocephala (Scop.). 
Notes from the Leyden Museum, Vol. XV. 
