150 



Ok a duret mi Eider Buff. 9. 1 03, t. 6. 



L ; Eider J'eill. En. Method. Om. 30. 119. 



Trachea Linn. Trans, vol. 1 '2. lab. 30, Jig. 1 . 



Like its congener, an arctic species, seldom seen south of the 55th degree N. L. hut in the 

 parts within that on all three continents and the adjacent islands, where it breeds, building its nest 

 of sea -weeds, and laving four eggs of a greenish colour. The trachea of the nude has the tube of 



nearly equal diameter throughout ; the inferior larynx swells outwards in front, and has on the left 

 side a small bulb ; the left bronchia is the largest, and is dilated in the centre. 



POLYSTICTA STELLERI. 



Poly. Mas. — Albas, fronte occipiteque viridibus; collum cingulo atro. 



Poly. Fern. — Ferruginea, ntro et obscuro raaculato, tluabus maculis albis tectricibus. 



WESTERN DUCK. 



Male, white duck, with the forehead and occiput green, neck with a black collar. 

 Fern. : ferruginous duck, marked with black and dusky ; with two white spots on the wing 

 coverts. 



Length 17 inches, 



Male: chin, throat, fore part of the neck, and collar black ; a black stripe extends from the 

 collar down the neck to the back, which is also black ; head sides and the upper part of the neck 

 to the collar white ; forehead and nape greenish ; a black irregular patch behind the eyes, with a 

 narrow band proceeding from it, and surrounding the orbits ; breast and sides light ferruginous ; 

 vent and tail black, with the edges of the feathers lighter ; a humeral spot black ; quills dark 

 brown ; tertiaries (very long) black edged with light brown. 



Fern. : ferruginous, marbled with dark and black, with two white spots upon the wing coverts, 

 the feathers of which are straight and blackish. (Xtittall.J 



Anas dispar Gmel. Syst. 1 . 535. 



Anas Stelleri Gmel. Syst. 1. 518. 



Pall. Spic. Zool. v. /'. 3-3. tab. 5. 



Polysticta Stelleri Eytun. Hist. B. Brit. Birds. 79. 



Macropus Stelleri Nuttall, Om. 2. 451. 



Fuligula Stelleri Bona]). Syn. 344. 



First discovered by Steller in Kamschatka, and do not appear to stray far from their native place. 

 A pair were shot in Oster Gothland, in Sweden, and are figured by Sparman. Another was killed 

 in the British isles. Nothing is known of the anatomy of this beautiful species. 



