from Mount Mace don. 
347 
type of extinct marsupials; but observed that further evidence 
relative to the marsupial character of these great quadrupeds was 
most desirable. From examination he concluded that the great 
extinct herbivorous marsupials did not exhibit the peculiar dis¬ 
proportion of the extremities characteristic of the kangaroo, but 
were possessed of legs of nearly equal length, like the wombat. 
The species of marsupial already known to inhabit Australia form, 
as Cuvier observed, a small chain of animals, representing the 
quadrupeds of America and Europe, which was now rendered 
more complete by the discovery of extinct genera representing 
the Pachydermata, and equal to the medium bulk those animals 
now attain.” 
Amongst the more perfect and characteristic bones procured by 
me on my visit to Mount Macedon, were three teeth of the Di- 
protodon , Owen, viz. two molars and an incisor. 
Fig. 1, represents a molar, slightly worn down, with its alveolus, 
and portion of the zygomatic process of the superior maxillary 
bone descending to form that peculiar process observed in the 
marsupialia—especially in the genera Macropus and Phascolarc- 
tos . The lateral development and strength of this bone indicates 
the great power in the muscles of mastication. 
Fig. 2, is the molar immediately posterior to fig, 1, from the 
same side of the jaw. 
Fig. 3, is a large incisor, apparently from the left side of the 
lower jaw, and was nearly ten inches long when first taken up, 
but from the thinness and less compact texture of the parietes of 
the medullary or pulp cavity, it has been reduced to the length 
of the figure. The peculiar punctate enamel covers the outer 
surface and internal thick edge of the tooth, and terminates 
rather more abruptly than in the true Rodentia. 
All the figures are of the natural size. 
The bones of this colossal animal are found in great abundance 
at Mount Macedon, and I have little doubt will be discovered 
over the whole of this vast province, ihose at Mount Macedon 
are associated with various species ot kangaroo those of Macro¬ 
pus Titan being very numerous. 
The long bones of some large Cursorial bird, which may prove 
to be a gigantic Emu } were also discovered. 
