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MANUAL OF ZOOLOGY. 



concerned, but they are employed by the bird as fins, enabling 

 it to swim under water with great facility, and they are also 

 used on the land as fore-legs. The feet are webbed, and the 

 hinder toe is rudimentary or wanting. The Penguins live 

 gregariously in the seas of the southern hemisphere, on the 

 coasts of South Africa and South America, especially at Tierra 

 del Fuego, and in the solitary islands of the South Pacific. 

 When on land the Penguins stand bolt upright, and as they 



Fig. 333. Jackass Penguin (Spheniscus demersus). 



usually stand on the shore in long lines they are said to present 

 a most singular appearance. The best-known species are the 

 Jackass Penguin (Spheniscus demersus) of the Falkland Islands, 

 and the King Penguin (Aptenodytes Patagonica) of the Straits 

 of Magalhaens. Some Penguins have the extraordinary habit 

 of forming no nest, but of carrying their egg about with them 

 in a temporary pouch of the abdominal integument. In the 

 Auks (Alcidtf) the wings are better developed than in the 

 Penguins, and they contain true quill-feathers ; but they are 



