SUBFAM. VII. ANATINA. 
The genera included in this sub-family are the Tree 
Ducks (Dendrocycena), Spur-winged Geese (Chenalopex ), Shel- 
drake ( Zadorna), Sheldrakes of the Old World and Australian 
Regions (Casarca), True Ducks (Anas), Teal (lVettion, 
Etuenetta, Chaulelasmus, Pectlonetta, Elasmonetta, Nesonetta ), 
Teal of the Northern Hemisphere and Neotropical 
Regions ( Querquedula), Wigeon (Mareca), Pintail (Dafila), 
Shoveler (Spatula), Malacorhynchus, Marmaronetta, Stictonetta, 
Ffeteronetta, which have not received English equivalents. 
GENUS DENDROCYCNA. 
The Tree Ducks constitute a genus comprising nine 
species, which, although web-footed, are remarkable for perching, 
and in many instances nesting in trees. 
They have a high slim body, long neck, small head, and 
weak bill. The legs are very long, the feet not fully webbed, 
the hind toe free, the claws long and strong, the wings moderate 
in length, the tail somewhat short, round at the tip, the plumage 
grey and brown of various shades, some spotted with white. 
Messrs. Sclater and Salvin describe this genus “as a 
good example of what may be called a Tropicopolitan group, 
being represented nearly everywhere within the tropics. In 
America four very distinct species are found, besides another 
that is scarcely more than a representative form.” (P.Z.S., 
1876). 
From various works we learn that the Tree Ducks usually 
rest during the great heat of the day, feeding at sunset, and in 
some instances throughout the night. They are vegetable 
