332 SPOLIA ZEYLANICA. 
B.—Size medium ; wing under 10 inches, broad and rounded. 
Genus Dendrocygna. 
(a) Wing about 7°5 ; upper tail coverts maroon. 
D. javanica (Whistling Teal). 
(b) Wing about 9; upper tail coverts creamy white. 
D. fulva (Large Whistling Teal). 
C.—Size small ; wing 6°5; bill 1°15 inch. 
Nettopus coromandelianus (Cotton Teal). 
11.—Surface-feeding Ducks.—Outer toe shorter than the 
middle ; tarsus noticeably shorter than bill. 
(a) Wing 10 to 11; wing bar metallic green or purple, 
bordered with black ; sexes alike; bill black with 
a broad orange band. 
Anas pecilorhyncha (Spotted-billed Duck). 
(6) Wing 9°5 to 10°5; wing bar black and white ; 
sexes unlike. 
Chaulelasmus streperus (Gadwall). 
(c) Wing 7°5; wing bar velvet-black and green ; 
sexes unlike. 
Nettivum crecca (Common Teal). 
(d) Wing 10 to 11; tail long and pointed ; wing bar 
in males bronze-green and velvet-black, with an 
inner border of cinnamon; in females replaced 
by two white bars ; sexes unlike. 
Dafila acuta (Pintail). 
(e) Wing 8; wing coverts lavender-gray ; wing bar 
in males glossy green between two white bands, 
in females absent or nearly so. 
Querquedula circia (Garganey Teal). 
(f) Wing 8°75 to 9°5; bill long, much broader at tip 
than at base, speculum glossy green, bordered in 
front with white ; sexes unlike. 
Spatula clypeata (Shoveller). 
I11.—Diving Ducks.—Outer toe as long as the middle toe ; 
hind toe deeply lobed. 
Netta rufina (Red-crested Pochard). 
a 
