56 
MACROPOD I Dili. 
lids, as in the human subject: in no other Marsupials have 1 
noticed true eyelashes: indeed, I believe the Macropi with 
eyelashes are the only Marsupials which roam about during 
the day, and this may account for the presence of these 
appendages. 
Upon the whole, it appears to me, that the most important 
divisions which have been made of the group Macropodidic 
are those which have received the names Hypsiprymnm aod 
Dendrolagus . The third division, containing the great bulk 
of the species, can be subdivided into groups of minor value 
only; the minor divisions, however, will be convenient, 
though to a certain extent arbitrary, as may be inferred 
from the preceding observations. 
It will be most convenient to notice here the 
FOSSIL MACROPODIDiE. 
These are confined to Australia. The most important and 
earliest notice we have of the existence of fossil Kangaroos 
is that drawn up by Professor Owen upon a collection formed 
by Major (now Sir T. L.) Mitchell, and which is published 
in that gentleman s work entitled Three Expeditions into 
the Interior oj Eastern Australia . The remains in ques¬ 
tion were found by Sir T. L. Mitchell, together with nume¬ 
rous others, appertaining entirely to Marsupial animals, in 
some caverns in the limestone rocks of Wellington Valley 1 . 
They were embedded in a fine red earth, more or less ce¬ 
mented together by stalagmite, and both hones and matrices 
closely resembled in their conditions those of the English 
caverns (of Torquay, tor example) and of the caves in the 
1 An account of these caverns will be found in the second volume of the 
work quoted, and, from the pen of the same author, in the Proceedings of the 
Geological Society for April 1831. 
