teeth. Posteriorly, the atlas vertebra will be found adhering to the 
occipital condyles. With a little patching the lower jaws were 
restored to a sufficient degree of perfection to enable me to make a 
basal measurement of the skull as a whole, and when the condyle 
of the jaw was placed in the glenoid cavity of the skull, the total 
length was found to be inches, or nearly 2} inches larger than 
the skull of the Tasmanian forester kangaroo (*• Macropus 
Gigantkus”). In considering the measurements given throughout 
the present Memoir it should be noted that the animal was 
immature at the time of its death, as is evidenced by the un- 
ankylosed condition, of all the epiphyses, and the measurements of the 
teeth. In the lower jaws the teeth can all be examined bv an appeal 
to both specimens, but from the more perfect (left), which was used 
for Illustration No. 2, pre-molar No. 4 is missing. Lower molar 
No. 4, in either jaw, shows a small but distinct hind talon, which is 
unfortunately not caught by the photograph. 
In this connection it is of interest to note that although this 
character was not originally included in the specific distinctions of 
“ Macropus Anar," it is now so included by Lydekker in his 
Catalogue of Fossil Mammals (part 5, page 214), in order to extend 
the species to include various synonyms. The cheek line of 
Macropus Axak ” is given by Lydekker as 70 to 72 M.M. in 
length; the present specimen is, however* only 68 M.M., but the 
immaturity of the animal must be recalled also the fact that 
Lydekker states that if more specimens were available for study, a 
greater variation might be deduced in the respective dentitional lines 
of individual specimens. Fortunately for us, a second detached and 
unassociated right jaw of a mature animal was found in quite 
another matrix by Mr. Howling, and, although much broken, it 
would seem to have had a tooth line of about 75 M.M. Tins, although 
large for “ Mackopus Anak,” is still too short for “ Macropus 
Bkeh us." 
Photograph No. 3 shows the femur, which is snapped into two 
pieces in the centre of the shaft. This bone has a total length of 
14^ inches, a proximal width of 4 inches, a distal width of 3A inches, 
While the least girth of shaft is equal to 4.1 inches. Fart of the 
pelvis, including about half of the acetabulum, still adheres to the 
head of the femur, cemented thereto by the matrix. The broken 
shaft of this bone enables a measurement of thickness to be recorded, 
which, when taken from the outer table to the medullary cavity 
amounts, in its thickest part, to over J of an inch. 
