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MAMMALIAN GALLERY. 



their short fore feet to the ground only when feeding or walking. 

 Their hind feet are of very peculiar structure, the great mass of 

 the foot being made up of the much-developed fourth toe, while 

 the first, corresponding to our great toe, is entirely absent ; and 

 the second and third, although long, are so slender and weak as 

 to be quite useless, and are bound up in a common skin to the 

 nails. This structure of the foot is not confined to the Kangaroos, 

 but is also found in certain of the other families. 



Kangaroos vary in size from species as large as a man to 

 others smaller than a rabbit, such as the Rat- Kangaroos (Hyp8%- 



Fig. 20. 



Kangaroo from New South Wales (Halmaturus parryi). 



prymnus or Potorous). Of those exhibited may be specially 

 mentioned the Great Woolly Kangaroo (Macropus rufus), the 

 largest of the family, and the beautiful Yellow-footed Wallaby (Pe- 

 trogale xanthopus) , the most brightly coloured species of the family. 

 2. The Phalangers (Phalangeridai} form a large and varied 

 group, to which belong : 



