364 
ON THE CLASSIFICATION OP BIRDS. 
culmen slightly indented at the 
termination of the nostrils : go- 
nys nearly straight. Feet long, 
three-toed. The lateral toes very 
short; the outer connected hy a membrane to the base 
of the middle toe ; the latter very long, and the claw 
serrated. 
T. isabellinus. PI. Enl. 79S. Burchellii. Part 5. No. 174. 
Orientalis. Part 5. No. 173. 
Ammoptila, Sw. Bill lengthened, conic: both man- 
dibles of equal thickness : gonys ascending ; the cut- 
ting margins considerably inflected. Feet moderate, 
three-toed. Lateral toes and claws equal ; middle toe 
rather short, the claw entire. 
A. charadro'ides. PI. Enl. 918. {fg. 321. 6) 
Order NATATORES. The Swimmers. 
Family ANATID.®. Ducks, 
Bin very broad ; the sides furnished with lamellar plates. 
SuBFAM. PHffiNICOPTIN^. 
Legs very long. GraUatorial. 
Phienicopterds, Linn. Flamingo. Size large. Bill 
thick, cylindrical, short, abruptly bent from the 
middle : the under mandible considerably thicker 
than the upper, which is greatly depressed ; the 
margins lamellar. 
P. Europaius. PI. Enl. 63. Americanus. Wilson, 66. f. 4. 
SoBFAM. ANSERIN.®. Geese and Swans, f 
Feet lengthened, moderate. RasoriaL 
Cygnds, Antiq. Swans. Size large. Base of the bill 
tumid, fleshy, and naked. Neck remarkably long. 
Feet short. Hinder toe simple. 
S. Bewiekii. Selby, pi. 47*. 
f The subgenera of this group have not yet been determined. 
