Tuick-KNEE. GRALLATORES. CDICNEMUS. 253 
and thighs white. Neck, and upper part of breast, yel- 
lowish-white, streaked with brown. Lesser wing-coverts 
pale cream-white. Quills black, the first having a large 
white bar near the middle, the second with one rather 
smaller. Tail wedge-shaped, the three outmost feathers 
reddish-white, with arrow-shaped bars and a broad tip 
of black, the next two feathers more inclining to wood- 
brown, with a few darker zigzag lines and variegations, 
and with black tips; the two middle feathers pale 
wood-brown, slightly marbled, but without the black 
tips. The horny point of the bill black, the basal part 
being primrose-yellow. Irides gamboge-yellow. Be- 
hind the eyes is a bare space of a wax-yellow colour. 
Legs and toes yellow, with a greyish tinge. Claws 
blackish-brown. 
The female resembles the male bird; and the young are 
distinguished by the colours being less marked and dis- 
.tinct, and the tarsus below the joint being thick and 
swollen. 
ORDER V. 
NATATORES. 
Tuts Order, which constitutes the fifth great division of 
the Class, contains (as the title imports) all the various tribes 
conspicuous for their aquatic habits ; and whose conforma- 
tion, as to the structure of, the feet and other anatomical 
points, fits them for swimming, diving, &c., and entitles 
them to the appropriate name of Water-Fowl. It answers 
to the Palmipedes of other systematists, if we except a few 
forms, which it has been found necessary (in strict accordance 
