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Show BIRDS. 13.5 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. Precilonitta. Baha.mensis, Eyton, Monog. p. IIG. Anru~ Ba.ha.mcnsis, 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. urophnsianus, Eyton, Monog. Anatidoo. p. 112. Anas urophasianus, Kin!J, Zoo!. Journ. iv. 351. Bahia Blanca, Northern Patagonia. RHYNCHASPIS MACULATUS. Gould. Rhynchaspis maculatus, Gould, in J ard. & Selby Illust. Orn. p. 147. pl. 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, :Uonog. Anatidre, p. 127. Anru~ erythrorbyncha, Spi:c, Av. Nov. sp. pl. My specimens were obtained from Buenos Ayres (October) and the Straits of Magellan (Feb1·uaty.) 2. QuERQUEDUI.A CREcco'inEs. Eyton. Querquedula creccoldcs, Eyton, 1tfonog. Anatidro, p. 128. Anas creccoides, Kin!J, Zoo!. Journ. iv. 99. Mr. GouJd observes that, " This species was first described by Mr. Vigors, |