PETROGALE XANTHOPUS, 
Gray, 
Yellow-footed Rock Wallaby. 
Petrogale xanthopus, Gray in Proc. of Zool. Soc., Nov. 14, 1854. 
All that is known respecting this fine animal is, that two examples, a male and a female, were collected on 
Flinders’ Range in South Australia, and sent to this country hy Mr. Strange, and that they were subse- 
quently purchased hy Dr. Gray for the British Museum collection, wherein they are now deposited. 
The Petrogale xanthopus is a typical example of the genus to which it belongs, and may be regarded 
as one of the finest species of the form yet discovered. Its large size and rich colouring render it very 
conspicuous, while the huffy hue of the ears and legs at once distinguishes it from the whole of its congeners. 
The habits, actions and economy of the Petrogale xanthopus are doubtless as similar to those of the other 
members of the genus as it is like them in form, but on these points nothing is at present known. 
Fur long, soft, and yielding to the touch ; face, head, and all the upper surface vinous brown-grey, 
becoming greyest on the rump ; a narrow line of dark rich brown extends from the crown of the ■ head 
down the centre of the hack; on each cheek a distinct mark of white; eyelashes full, prominent, and 
brownish-black ; behind each arm a large patch of reddish-brown, separated from the general tint of the 
upper surface hy a streak of huffy-white ; ears ochre-yellow, becoming lighter at the base, fringed internally 
with white, and tipped externally with brown ; front of the arms bright huff ; hands rich dark brown ; outer 
side of the legs light ochreous-brown, fading into white on the inner side, and passing into the rich dark 
brown of the toes ; throat and under surface white ; tail ochreous-brown, irregularly barred with a darker 
tint, and ending in a conspicuous tuft which is rich brown above and ochreous below. 
Of so fine a species I have considered it desirable to give two illustrations, — the entire animal, necessarily 
much reduced, and a foreshortened figure of the size of life. Nor must I omit to call attention to the 
interest which would attach to the introduction of living examples to our menageries, and to the acquisition 
of additional examples for our museums. 
