563 
ON A SMALL FOSSIL MARSUPIAL WITH LARGE 
GROOVED PREMOLARS. 
By R. Broom, M.D., CM., B.Sc. 
(Plates xxv. and xlv.) 
At the Meeting of the Linnean Society on 26th June I com- 
municated a paper "On a new fossil Marsupial allied to Hypsi- 
prymnus, but resembling in some points the Plagiaulacidce" in 
which I described two fragments of the upper and a portion of the 
lower jaw of a small Marsupial, under the name Burr amy 8 parvus, 
and regarded the form as being related to the Rat Kangaroo, but 
exhibiting apparently by a parallel development some characters 
of the Playiaulacidoi. Of this paper an abstract was published at 
the time. Since then I have been fortunate in discovering some 
more perfect specimens which throw much additional light on the 
structure of the form. I have therefore thought it advisable, with 
the permission of the Council, to withdraw the previous paper 
and give a more complete description in the light of the more 
recent finds. 
The specimens I have obtained are all from a small calcareous 
deposit in the neighbourhood of Taralga, N.S.W. This deposit is 
situated on the very top of a limestone hill, and is evidently the 
remains of the floor of a cave, whose roof and sides have long 
since been weathered away. The stona is very hard and consists 
of a brownish lime deposit in which are imbedded innumerable 
small bones, with the remains of a few stalactites and an occa- 
sional calcite rhomb. The bones are mostly those of small 
marsupials, though I have also found the remains of at least one 
species of rodent and the very perfect cranium of a small bird. 
