THE KEILOR FOSSIL SKULL: ANATOMICAL DESCRIPTION 59 
The canine fossae are deep. The facial part of the skull exhibits, 
in addition to the Tasmanoid characters that have been referred 
to, several others which are described elsewhere in this volume 
by Dr. Wm. Adam. 
The Keilor skull has none of the extreme features that are seen 
in many Australian male crania, such as the acute keeling of the 
vault, the very rough areas of muscle attachment, and the general 
ruggedness of bone construction. 
On account of the inerustation on the inner aspect of the 
cranium, it was not possible to measure the ¢ranial capacity in the 
usual way. Lee’s formula No. 10 was, therefore, used in caleu- 
lating it. This formula is as follows: 
‘000365 (Length X Breadth X Auricular Height) + 359°34. 
Anatomically, the skull exhibits a mixture of Australoid and 
Tasmanoid characteristics in about equal proportions. In general 
form it resembles the cranial type of the South Australian males, 
but the parietal eminences and the superciliary ridges are more 
prominent than is usual in them. 
CRANIAL Contour Drawtnas 
Contour drawings of the Keilor skull are shown in PI. VII, 
VIII and IX. 
Type contours were obtained from four male Tasmanian skulls 
in the Anatomy School, University of Melbourne; war-time con- 
ditions prevent access to a larger series. Since the number of 
specimens is small, mean measurements for Tasmanian type con- 
tours in Table IT are not as accurate as mean values for various 
racial groups quoted from Wagner (10, Table 27 ). 
The irregularity in the line and the asymmetry on the right 
side of the transverse, vertical and horizontal contours of the 
Keilor skull are due to damage caused at the time of discovery. 
Sagittal Contour (Pl. VII). 
The sagittal contour was drawn while the skull was orientated 
at right angles to the Frankfurt horizontal plane, and not as 
described by Bennington (1) and Wagner (10). 
The points marked on the drawings are those used by Wagner 
and are as follows: nasion, N; gamma, 7, in the same horizontal 
plane as nasion, when the skull is orientated in the Frankfurt 
plane; glabella, G; bregma, B; vertex, V; lambda, A; inion, I; 
basion, BA; opisthion, OP; porion, AUR; orbitale, SUB. ORB; 
and alveolar point, AP. 
Fifty-seven measurements of the sagittal contour of the Keilor 
skull are recorded in Table II together with Wagner’s mean 
