28 
ANNALS OF THE QUEENSLAND MUSEUM, No. 6 
no molar teeth are in evidence so far, and in the absence of the 
forepart of the muzzle the sex cannot be positively ascertained.* 
It is clear that from so small a portion of a skull an estimate of 
its distinctive characters, if any exist, must be founded mainly 
upon such peculiarities in its proportions as may be observable. 
Though it is pretty obvious to the eye that in general configuration 
it differs from the living species, the reality and extent of the 
difference will be more satisfactorily certified by a comparison 
between such measurements as the fossil affords, and corresponding 
measurements in a sufficient number of recent skulls. The measure- 
ments found available are the distance of the posterior end of the pre- 
maxillary suture from the lower end of the tubercle descending 
upon the anterior edge of the malar ; the distance from the 
same point on the malar from a point on the aforesaid suture 
equidistant from the posterior end of the sutures in all the skulls 
compared ; the distance of the end of the suture from the hinder 
edge of the malar process of the maxillary ; the vertical depth 
of the rostrum measured at the end of the suture ; the greatest 
breadth of the premaxillaries anteriorly to the end of the suture ; 
the distance of the end of the suture from the line of maximum 
breadth ; the least breadth of the narial process of the premaxillary. 
To these we may add the least depth and the least thickness of the 
malar. Throwing these measurements into a tabular form for more 
convenient reference, we have the following figures in millimetres : — 
rj 
Oi 
Recent 
Skulls. 
fa 
No. 1 
No. 2 
No. 3 
No. 4 
No. 5 
No. 6 
No. 7 
No. 8 
No. 9 
No. 10 
Distance of posterior end 
of premaxillary >suture 
from lower end of malar 
tubercle 
113 
144 
135 
134 
133 
126 
138 
132 
151 
132 
125 
Distance from malar 
tubercle to a point on 
suture equidistant from 
end of suture in all 
skulls 
133 
162 
153 
152 
144 
165 
152 
145 
157 
145 
138 
Distance from end of 
suture to hinder edge of 
malar process 
119 
144 
140 
138 
120 
128 
140 
134 
160 
131 
119 
Vertical depth of rostrum 
at end of suture 
70 
88 
68 
68 
62 
73 
70 
84 
Greatest breadth of pre- 
maxillaries 
100 
95 
85 
81 
80 
80 
85 
91 
100 
89 
72 
Distance of greatest 
breadth from hinder 
end of suture 
50 
70 
34 
20 
30 
56 
48 
27 
44 
28 
Least depth of malar 
37 
34 
36 
30 
30 
35 
42 
38 
37 
43 
37 
Least breadth of malar . . 
15 
20 
19 
18 
20 
21 
18 
21 
23 
21 
19 
Least breadth of narial 
process of premaxillaries 
43 
39 
37 
36 
35 
38 
38 
36 
42 
32 
* From the size of the tusks as they appear in section, the animal was 
doubtless a male. 
