302 
Proceedings of Learned Societies. 
Hah. Moore’s River, in the interior of Western Australia. 
This mouse is rather larger than the Mus musculus, and con¬ 
siderably stouter in proportion; has the head large, the ears 
moderate ; the tail nearly equal to the head and body in length ; 
the tarsi very slender; the fur very long and soft, and its general 
hue pale ashy grey; on the hinder part of the back a slight 
brownish tint, produced by a very fine and indistinct pencilling of 
dusky or pale greyish yellow; the lower part of the sides of the 
body and the whole of the under parts white, but not quite pure, 
having a faint greyish hue; the head grey-white, pencilled with 
black ; the sides of the muzzle white; the ears well-clothed with 
minute greyish white hairs; the feet white, and if we except some 
scattered blackish hairs ou the upper surface, the tail also white. 
Hapalotis murixus. Hap. vellere permolli, corpore suprd 
pallidb flavo, nigroque penicillato, lateribus corporis flavis ; 
guld abdominis, caudd, pedibusque albis; caudd suprd indis- 
tincte nigro penicillatd; auribtis magnis, subova tis, pilis. 
minutis albis vestitis. 
unc. lin. 
Longitudo ab apice rostri ad caudae basin .... 5 6 
— caudce . 3 9 
— ab apice rostri ad basin auris. 1 3 
— auris . 0 10 
— tarsi digitorumque . 1 Of 
Hab. Plains near the Namoi, New South Wales. 
This animal is remarkable for the extreme softness and delicate 
colouring of its fur, which on both the upper and under parts of 
the body is of a slate-grey tint next the skin, but on the under 
parts of a pure white colour externally, except on the mesial line 
of the abdomen, where there is a slight yellow tint; on the upper 
parts and sides of the body the exposed portions of the hairs are 
of a delicate ochreous yellow, but on the back there is a con¬ 
siderable admixture of black, the points of the hairs being of that 
colour; ears rather large and nearly of an oval form, tolerably 
well-clothed with small hairs, of a white colour, excepting on the 
fore-part of the outer surface, where they assume a dusky greyish 
hue; tail nearly equal in length to the body, tolerably well-clothed 
with hairs, but not so thickly as to hide the scales; these hairs, 
