206 APTENODYTIDJE. 



423. PODILYMBUS PODICEPS (Linn.). 

 (THICK-BILLED GREBE.) 



Podilymbus podiceps, Baird, Brew., et Rldgw. Water-B. N. A. ii. p. 440 ; 



Withington, Ibis, 1888, p. 473. 



Description. Above dirty brown, varied with blackish ; wings cinereous with 

 white tips to some of the secondaries : beneath white, sprinkled with greyish on 

 the breast and sides ; chin and throat black ; bill short, compressed, plumbeous, 

 crossed by a black band ; feet black : whole length 12-0 inches, wing 5'0, 

 tail 1-0. Female similar. 



Hab. North and South America. 



The Thick-billed Grebe extends all through America, from Canada 

 down to Patagonia and Chili. It does not seem to have been noticed 

 in the Argentine Republic except by Mr. Withington, who sends us a 

 single specimen from the Lomas de Zamora, near Buenos Ayres. 



A second and larger species of this genus (P. antarcticus) occurs on 

 the western side of America from Guatemala to Chili. 



Order XVIII. IMPENNES. 



Fam. LIT. APTENODYTIMl, OR PENGUINS. 



The Penguins are a peculiar group of oceanic birds which differ 

 essentially from all other birds in the construction of their wings and 

 feet, and should certainly form an Order apart. They are denizens of 

 the Antarctic sea-shores and islands, but in the Pacific go as far north 

 as the Galapagos. On the shores and islands of South America nine 

 species occur, one of which has been met with within our limits. 



424. SPHENISCUS MAGELLANICUS (Forst.). 

 (JACKASS PENGUIN.) 



Spheniscus magellanicus, Scl et Salv. Nomencl. p. 151 ; Scl. Zool Cliall. Exp. 

 pt. viii. (Birds), p. 125, pi. xxviii. Aptenodytes demersa, Abbott, Ibis, 

 1860, p. 336. 



Description. Above bluish black; broad superciliary stripe descending on 

 each side of the neck white : beneath white ; throat and sides of neck, and two 

 breast-bands, the lower narrower and produced down the sides of the belly, 

 black ; bill and feet plumbeous : whole length 16-0 inches, wing r5, tail 2-0. 



Hab. Coasts of Antarctic. America and Falkland Islands. 



