212 
MACROPODIDiE. 
ever, is white,—not the “ latter half ' white, as described by 
Mr. Ogilby. It measures from the tip of the nose to the root 
of the tail, 11 inches; the tail is 10 inches, and the tarsi, 
without including the claws, 3" 11"'. 
HYPSIPRYMNUS ( Bettongia ) PENICILLATUS. 
Tufted-Tailed Rat-Kangaroo, 
(Plate 9.) 
Bettongia penicillata, Gray, Mag. Nat. Hist, for November, 1S37, vol. i. 
(New Series,) p. 581. Waterhouse, Marsup. 
p* 183. Gould, Monogr. of the Macropodid®, Pt. I, 
PI. 14. 
Hypriprymnus murinus, Ogilby, Proc. Zool. Soc. for May, 1838, Pt. C, 
p. 63. 
setosus, Waterhouse, Catal. of the Mammalia of the Zool. 
Soc. (1838), p. 65. 
(Bettongia) Ogilbyi , Gould's MSS. Waterhouse, Mario, 
pialia, p. 185. 
Bettongia Gouldii , Gray, List of the Mammalia in the British Museum 
Collection, 1813. 
Fur long and moderately soft : general colour ashy brown ; sides 
of head and throat slightly suffused w ith yellowish ; under 
parts dirty white, very obscurely tinted with yellow; ears 
clothed with yellow hairs internally : tail brown, somewhat 
pencilled with pale rust colour : the apical third, clothedabore 
with long, bushy, black hairs ; the under surface brown-white, 
brown towards and at the apex ; fore feet brown-white; 
tarsi pale brownish ash colour. —Skull, PI. 6, fig. 3. 
Inhabits New South Wales. 
The following detailed description is drawn up from a 
specimen in the Museum of the Zoological Society, which is 
the original both ol Mr. Gray’s diagnosis of Bettongia pent * 
