duck. 237 



A. — Anser cyguoides, spontaneus, Pall, reise, iii. p. 700. 



Size of the other. Bill black: on the forehead a rugose, bifid, 

 elevated excrescence, but not formed into a knob as in the last; 

 under the chin no sack, or pouch ; the ring round the base of the 

 bill rusty white ; crown testaceous brown, descending in a list of the 

 same colour at the back of the neck; the rest of the plumage similar 

 to the former; legs crimson. 



B. — Anas cygnoides (orientalis), Lin. i. 124. 2. 0. Ph. Tr. lvii. 347. Dec. russ, i.466. 



Anser Muscoviticus, Bris. vi. 277. Id. 8vo. ii. 435. 



Anser Russicu3, Klein, Av. 129. 5. 



Crop Goose, Kolb. Cap. ii. 139. 



Muscovy Gander, Albin, ii. pi. 91, 92. Gen. Syn. vi. 447. 12. A. 



Length three feet six inches. Bill orange ; irides yellow ; on the 

 forehead a large knob the same colour as the bill ; and beneath the 

 throat a wattle ; head and neck brown, deeper at the hind part ; 

 back, wings, and tail, the same, but deeper, and margined with a 

 paler colour ; quills, breast, and belly, white. 



The female smaller; head, neck, and breast, fulvous; paler on 

 the upper parts; back, wings, and tail, much like the male ; belly 

 white ; the rest as in the male, but the knob over the bill is smaller. 



C — This Variety differs in being wholly white ; and both sexes 

 were alive in the collection of Colonel Montagu. The person from 

 whom he had them said they came from Java. The bill and legs 

 orange. They produce more than one brood. 



The above, we believe, constitute only one species ; the charac- 

 teristic marks of which are the knob over the bill, and the loose skin 

 under the chin, and we find that the bird often varies in respect to 

 the bill, knob, and legs, all of which have been black in the speci- 

 mens we have seen. 



