228 
MACROrODIDK. 
the figure of the skull of II. Peronii , now before me, a small 
post-orbital projection is represented; this skull in other 
respects resembling Whites Potoroo. 
Following are the dimensions of the skull of the Potoroo of 
White, that of II. Peronii , and of three skulls of the H. 
myosurwi of Mr. Ogilby. 
Potoroo 
of 
White. 
Col. Sur. 
II. I’eron 
H. 
/- 
Brit. Mjis. 
myosurus. 
— 1 ' \ 
Coll. Surg. 
Ins. Lin. 
Ins. Lin 
Ins. Lin. 
Ins. Lin. 
Ins. Lin. 
Total length of skull 
3 1£ 
3 2J 
3 8 
3 9 
3 9£ 
Width . 
1 6j 
1 64 
1 94 
1 94 
1 8j 
Length of nasal bones 
i tj 
1 44 
1 G 
i 7i 
1 H 
Width of ditto at base 
6 
5£ 
4* 
4 
55 
“ near the apex 
2J 
24 
3 
2J 
24 
Interorbital space . 
74 
7 
94 
9 
Length of three incisors taken 
together, on either side of 
the upper jaw 
34 
44 
4 
From posterior incisor to 
canine ... . 
14 
1J 
H 
Between canine and premolar 
H 
3 
3 
Length of upper premolar ... 
34 
3J 
34 
4 * of premolar, and other 
molars taken together 
104 
m 
105 
From front of foremost inci- 
sor to back part of last 
molar 
l 7* 
1 10 
1 9 
From ditto to front of premolar 
10£ 
iof 
