©key's kangaroo. 
12JJ 
well clothed with hairs (rather longer, softer, and less 
adpressed than usual) of a very pale grey colour, washed, as 
it were, with yellow on the upper parts, and brown-white 
beneath ; a considerable space at the apex covered with long 
dirty yellowish hairs. 
Inhabits South Australia. 
Two specimens of this beautiful species have recently been 
presented to the British Museum by the lion. Capt. G. Grey, 
in honour of whom it has been named. 
This species is allied to the Ha Ima turns manicatus of 
Gould, but differs not only in colouring, the general tint of 
the upper parts of the body being brownish, but pale and 
with an admixture of yellow, whilst in II. manicatus, or 
Irma , it is grey, but may be distinguished from either of the 
two animals mentioned by its having no crests to the apical 
portion of the tail: this organ is clothed at die sides, as well 
as on the upper and under surfaces, with long pale hairs at the 
apex. The palish tint of the upper parts of the body is 
produced by die mixture of white with pale rust colour and 
black, the visible portion of each hair exliibiung these 
colours; the hairs are, in fact, of a very pale grey at the 
root, rusty yellow in the middle, and this is followed by a 
white space, and the remaining portion is black, but be¬ 
tween the white space and the black point is a narrow ring 
of a rusty-red colour. On the under parts of die body the 
hairs are of a pale buff-yellow colour externally, and pale- 
grey at the root. The head is grey above, obscurely tinted 
with rufous, and this latter tint is also observable on the back 
of the ears, as well as on die neck: immediately behind the 
naked tip, the muzzle is dusky black above, blit the black hue 
is almost immediately blended into the general grey tint: 
on the sides of the muzzle are diree longitudinal bands, of 
which the middle one, representing the ordinary pale cheek- 
mark, is pale yellow; the upper one almost black, but slightly 
