THE KANGUROO. 
Macropus masgor. Suaw. 
THE very peculiar structure from which the Marsupial 
animals derive their name has been regarded by almost 
every naturalist who has written on the subject as so 
essential a deviation from the common type, that, setting 
aside all considerations of form or habits, and regardless 
even of-those technical characters on which so much 
reliance is usually placed, they have for the most part 
agreed in uniting under the same family designation 
every animal in which it occurred. This peculiarity 
consists in a folding or doubling of the skin and its 
appendages beneath the lower part of the belly in the 
females, in such a manner as to form an open pouch or 
