PINTAIL DUCK. 259 



margined with white ; from the occipital portion of the 

 neck on eacli side descends a white stripe, which becoming 

 broader as it passes downwards, extends in front over the 

 whole of the lower portion of the neck, breast, belly, and 

 part of the flanks ; the sides grey ; vent and under tail- 

 coverts velvet black ; legs, toes, and their membranes, 

 blackish brown. 



The whole length of the male, somewhat influenced by 

 the tail-feathers, is from twenty-six to twenty-eight inches. 

 From the carpal joint to the end of the wing ten inches and 

 a half ; the first quill-feather the longest in the wing. 



The female has the head reddish-brown ; the neck pale 

 brown, both parts speckled with very dark brown ; upper 

 surface of the body dark brown ; each feather almost black 

 in the centre, and pale brown on the margin ; tail-feathers 

 also dark brown, varied with pale brown ; no appearance 

 of white lines on the sides of the neck ; under surface of 

 the body nearly uniform pale brown. 



The length of the windpipe in this species is about nine 

 inches and a half, the diameter of the tube slightly en- 

 larged about an inch above the bony labyrinth, the form of 

 which is figured below. 



I 



8 2 



