BIRDS. 
135 
channels of Tierra del Fuego, the snow-white male, invariably accompanied by 
his darker consort, and standing close by each other on some distant rocky point, 
is a common feature in the landscape. Mr. Eyton has described the treachea of 
this species, which I brought home. 
PjECilonitta Bahamensis. Eyton. 
Psecilonitta Bahamensis, Eyton , Monog. p. 116. 
Anas Bahamensis, Linn. Syst. i. 199. 
Mareca Bahamensis, Steph. Gen. Zool. xii. p. 137. 
A specimen was procured from a small salt-water lagoon in the Galapagos 
Archipelago ( October.) 
It was a male ; bill, lead colour ; base of superior mandible purple, with a black 
mark in the upper part. 
Dafila urophasianus. Eyton. 
Dafila urophasianus, Eyton , Monog. Anatidee. p. 112. 
Anas urophasianus, King , Zool. Journ. iv. 351. 
Bahia Blanca, Northern Patagonia. 
Rhynchaspis maculatus. Gould. 
Rhyncliaspis maculatus, Gould, in Jard. & Selby Illust. Orn. p. 147. pi. 147. 
Mr. Gould observes that, “ A good figure of this beautiful shoveller may be 
found in the 3rd vol. of Messrs. Jardine and Selby’s Illustrations of Ornithology. 
Their figure was taken from an example which I forwarded to those gentlemen 
with the name of maculata attached: my specimen was received from the Rio Plata, 
and this is also the locality whence (in October) Mr. Darwin’s specimen was 
procured. The numerous and conspicuous spots distributed over the body, 
renders this species readily distinguishable from all the other members of the 
genus.” 
1. Querquedula erythrorhyncha. Eyton. 
Querquedula erythrorhyncha, Eyton , Monog. Anatidee, p. 127. 
Anas erythrorhyncha, Spix , Av. Nov. sp. pi. 
My specimens were obtained from Buenos Ayres ( October ) and the Straits 
of Magellan ( February .) 
2. Querquedula creccoides. Eyton. 
Querquedula creccoides, Eyton , Monog. Anatidee, p. 128. 
Anas creccoides, King , Zool. Journ. iv. 99. 
Mr. Gould observes that, “This species was first described by Mr. Vigors, 
