PUASC0L0MBY8 WOMBAT. 
25 1 
incisive openings are narrow and rather small (half an inch 
in length); the posterior palatal openings are also small— 
half an inch long, and a quarter of an inch in width at the 
widest part, which is behind. The cavity corresponding to 
the sphenoidal bulla nsttea in other Marsupials, is here (as 
pointed out by Prof. Owen) excavated in the lower part 
of the squnmous element of the temporal bono. The condyle 
of the lower jaw is of great width, but narrow, and convex 
in the nntero-postcrior direction : the inflected angular 
portion is of great size, its width being very nearly equal to 
the width of the interspace between the two mmi behind : the 
symphysis menti is of great extent: the ooronoid process is 
large, and much elevated. The proportions will be illustrated 
by the following dimensions, which are taken from a cranium 
in the British Museum, which evidently belonged to an aged 
individual. Scarcely any of the sutures are obliterated in 
this skull — even the sutures indicating the boundaries of the 
elements of the occipital and temporal bones are distinct; 
the frontal sutures, and the suture between the nasal bones, 
are partially obliterated. 
Inches. 
Lines. 
Total length of skull 
8 
0 
Width . 
5 
11 
* 4 between orbits ... ... 
2 
G 
Length of nasal bones .. 
2 
1(U 
Width of ditto in front ... . 
91 
M behind.. ... 
2 
2* 
Greatest depth of zygomatic arch, behind 
HI 
7J 
Length of palate . 
4 
Width of ditto between the posterior molars ... 
1 
Oi 
between the anterior molars 
5 
Longitudinal extent of the five molars of the 
upper jaw, on either side . 
2 
2 
Length of lower jaw ... .. . 
5 
11 
Height in a vertical line dropped from the coronoid 
process . 
3 
0 
Longitudinal extent of symphysis menti . 
3 
o 
