46 
Subfam. ANSERINiE. 
Genus Cygnus, Antiq. 
* Cyg. ferus. Britain or Cyg. Bewickii. Britain . 
Genus Anser, Antiq. 
* A ns. Segetum. Britain . 
* Ans. (Bernicla, Steph.) Brenta. Britain. 
Genus Dendrocygna, Swain. 
Dendro. arcuata. Java. 
Genus Plectropterus, Leach. 
Plect. Gambensis. Africa . 
* Plect. Chenalopex, S teph.) iEgyptiacus. Egypt, Britain . 
Genus Cereopsis, Lath. 
Cerop. Australis. Australia, 
Subfam. ANATINfE. 
Genus Mareca. 
* Mar. Penelope. Britain. 
Genus Dendronessa, Swain. 
Dendro. sponsa. North America . 
Genus Anas (l), Linn. 
* An. (Chauliodus, Swain.) Strepera. Britain . 
An. (Malacorhynchus, Swain.). Australia . 
* An. (Anas, Linn.) clypeata. Britain. 
* An. (Boschas, Swain.) ferus. Britain . 
* An. (Dafila, Leach.) caudacuta. Britain. 
Genus Tadorna, Leach. 
* Tad. Bellonii. Britain. 
Genus Cairina. 
Cai. Moschata, Britain or South America . 
Subfam. FULIGULINiE. 
Genus Somateria, Leach. 
* Soma, mollissima. Britain. 
( 1 ) The subgeneric groups of Mr. Swainson are here adopted. 
