BY C. W. DE VIS, B.A. 13 



Femur. Of this bone a moiety of the shaft has been recovered, 

 but unfortunately no portion of the heads. That part of the bone 

 however, which has been restored, comprising the proximal half, 

 perhaps somewhat more, of the shaft, from near the base of the 

 great trochanter on the one side and from the upper part of the 

 lesser one on the other, is a most welcome guide. The lesser 

 trochanter is represented exactly as in the Diprotodon' s femur by 

 a broad and low convex ridge running along the hinder half of the 

 lower margin of the " neck." Another Diprotodontoid feature 

 is also observable in the present fossil, the scar between the two 

 trochanters. This in Diprotodon is a long shallow depression on 

 the anterior side of the shaft close to the lower margin of the neck — 

 in the bone before us it is a semi-lunar rough tract with its lower 

 convex border raised above the surface. Again the scar repre- 

 senting the so-called " third trochanter" in the Kangaroo is 

 present in both femurs, but not in the same position. In 

 Diprotodon it appears about the middle of the shaft, in this fossil 

 it is close to the inner edge. A rough tract from the great 

 trochanter downwards alongside the whole outer edge formed by 

 the fore and hind surfaces resembles in a general way the 

 corresponding representative of the linea aspera in the Diprotodon. 

 The bone as restored measures 13 inches in length and 2 J inches 

 in its least transverse diameter. The fore and aft diameter of this 

 greatly compressed fossil may not however be trusted, the bone 

 has evidently been subjected to a crushing power which may have 

 flattened it considerably before breaking it up into angular 

 fragments. On the whole it bears a striking resemblance to a 

 Diprotodon femur. 



Radius and Ulna. — Of the Radius and Ulna, of the last- 

 named marsupial or of Nototherium the writer knows nothing 

 with certainty. There are bones before him which, from their 

 size alone, might well be referred to one or other of the gigantic 

 genera, but from evidence at hand it appears probable that there 

 is more than one huge form to be distinguished, by their as yet 

 unknown dentition, from those whose teeth have been discovered. 

 It would, therefore, be hazardous to associate the radio-uluar 



