CLASS II. — AVES. 
XXV 
ORDER VI. — Palmipedes ( continued ) . 
Family. 
. 
hA v 
W W 
5 H 
Genus . 
XII. Anas, 
( cont .) . 
XIII. Mergus, 
Subgenus. Example of Species. 
5. Oidemia, Flem An. nigra, L. Scoter duclc 
6. Clangula, Leach { An ^ s,rionica ’ L ' Harlequin 
7. Somateria, Leach. . An. mollissima, L. Eider goose 
8. Fuligula, Leach . . . An. ferina, L. Pochard duck 
9. Rhynchaspis,ieac^.An. clypeata, L. the Shoveler 
10. T adorn a, Bel. An. tadoma, L. the Shieldrake 
j JM. merganser, L. the Goosan- 
L * \ der 
Note . — The great genus Anas is primarily divided into three subgenera : swans, 
geese, and ducks ; which y^e have indicated by interior braces ; the swans forming 
only one subgenus, but the geese and ducks several. The last subgenus, tadoma , 
is still further subdivided, and made to contain the Muscovy duck, the mallard, the 
teal, &c. ; but our limits prevent us entering into such minute details. 
d 
