202 



upper mandible a black tubercle ; cere is black ; the 

 plumage is snowy white ; the feet are lead colour. It 

 is larger than the wild swan. 



The female lays 6 or 8 white eggs. 



On dissection, the trachia exhibits no peculiar 

 structure. 



3. CYGNOIDES. SPANISH GOOSE. 



A. rostro semicylindrico, cera gibbosa, palpebris tu- 

 midis. Lath. 



The bill is orange ; the irides are reddish brown ; 

 the root of the upper mandible is furnished with a 

 large protuberance ; also a whattle under the throat; 

 a dark brown stripe runs down the hinder part of 

 the neck from the head to the back ; the forepart of 

 the neck, and the breast are yellowish 'brown ; the 

 back and all the upper parts are grey ; belly white ; 

 legs orange. 



Var. bill and legs black, &c. 



(DOMESTICATED.) 

 4. CANADENSIS. CANADA GOOSE. 



A. cinerea, capite colloque nigris, genis gulaque albis. 

 Lath. 



The bill is black ; the irides k are hazel ; the head 

 and the neck are black, with a white Crescent on the 



