200 
MACROPODID^E. 
Inches. Lines. 
Length of ditto and three molar teeth toge¬ 
ther (the foremost molar being a 
milk tooth) 
0 
m 
“ of palate 
1 
8 
Width of ditto between the premolar teeth 
0 
8 
“ of interorbital space 
0 
G* 
Length of permanent premolar . 
0 
H 
Height of lower jaw, measuring from apex of 
coronoid process ... ... . 
1 
13 
Distance between hinder part of condyle and 
anterior margin of coronoid process, 
measuring in a horizontal line . 
Inches. Lines. 
0 4} 
0 8 § 
' Sub-genus 2. Bettongia. 
Bettongia. Gray, Magazine of Nat. Hist. Vol. i. (New Senes), p. 584. 
Muffle naked ; tarsus long. 
The tail is generally provided with longisk hairs on the 
upper surface of the apical portion, forming a bushy crest on 
this part, in the species of this section, some of which (if not 
all) have a prehensile power in the tail; tho prehensile 
power, however, is apparently very limited, for the organ in 
question is not capable of being used, as in the Phalangers, 
and some other Marsupials, for sustaining the weight of 
the body. 
HYPSIPRYMNUS {Bcttongia) CUNICULUS. 
Tasmanian Rat-Kangaroo. 
/Iypxiprymnns cuniculus. Ogilbv, Proceedings of the Zoological Society for 
May 1838, p. G3; Waterhouse, Marsupialia, p. 186. 
Bettongia setosa . Gray, Magazine of Nat. Hist. vol. i. (New Series), p. 584 ; 
List of Mammalia in the collection of the British Museum, 
(1843), p. 93. 
Bettongia cuniculus , Tasmanian Jerboa Kangaroo. Gon.n, Monogr.onthe 
Mncrop. Part 2, 14th Plate. 
Fur moderate, of an ashy brown colour, pencilled with whitish; 
on the under parts of the body dirty white: ears with pale 
