232 



ANATID.E. 



The female is without a crest ; the top of the head dark 

 brown ; cheeks, throat, and sides of the neck greyish-white ; 

 upper surface of the body pale rufous-brown ; point of the 

 shoulder and the speculum greyish-white ; breast reddish- 

 brown ; the other parts of the under surface greyish-brown ; 

 beak and legs reddish-brown. 



The Avindpipe of the male is about nine inches in length, 

 the tube is narrow in diameter at the middle, and near the 

 end, but enlarged at the commencement and again below the 

 middle, as shown in the representation of the lower half here 

 inserted. The labyrinth in the Ducks of this division is 

 composed partly of bone, and partly of membrane. The right 

 and left surflice are here shown ; the membrane supported by 

 delicate portions of bone diverging from an outer bony ring. 



JF"*^— - 



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