156 KEY TO THE WATER BIRDS OF FLORIDA. 
SusprAmMity ANATIN/E. River Ducks. 
Dafila acuta. Anas americana. 
(1) Hind toe without membranous lobe or flap. Belly 
white, sometimes faintly tinged with blackish or gray 
on lower part. Length over 17.50; wing over 8.50, 
Length, 28; Wing, 9.50; Tail, 7; Bill, 2. Head 
brown; speculum green, edged with black and 
white; middle tail feathers elongated. Dafila acuta (male). 
Pintail. See page 223 
Length, 22; Wing, 9.25; Tail, 3.50; Bill, 2. Head 
brown; speculum brown and white; under wing 
coverts dark. Dafila acuta (female). 
Pintail. See page 224 
Length, 23; Wing, 10.50; Bill, 2.20, Head greenish ; 
speculum purplish, bordered with white and black ; 
feet red. Anas boschas (male). 
Mallard Duck. See page 215 
