204 
MACROPODID/E. 
mate very nearly to the H. penicillatus : the broader form of 
the anterior pair of incisors, however, will help, in combination 
with other characters about to be noticed, to distinguish the 
H. Graii from either of those two species. The skull is 
proportionately broader, the auditory bull® larger, the pre¬ 
molar tooth larger, and placed nearer the canine, than in H. 
penicillatus : the auditory chambers are much larger, and the 
interorbital space is more contracted, than in //. Gaimardi. 
Other points of distinction will be perceived in the proportions 
of the skull and teeth upon comparing the dimensions, here¬ 
after given, with those of the crania of the species just 
mentioned. 
The following is a description of an adult male specimen 
in the British Museum, which formed part of Mr. Gould's 
collection, and which, I believe, is the original of that gentle¬ 
man’s description in the Proceedings of the Zoological Society; 
if so, it is from the Swan River district. 
Fur moderately long, and soft: general tint brownish ash 
colour, but pencilled with white and blackish; under parts 
dirty white. Ears externally clothed with long hairs of a 
brownish white colour, but tipped with brown ; internally with 
shorter hairs, of a palish yellow colour, but brown on the 
margin of the ear. Feet brown-wliite, or very pale brown. 
Tail clothed throughout with adpressed hairs, and these of a 
rufous brown tint on the upper surface of the tail, anti dirty 
white on the under surface; the apical portion of this organ, 
however, is entirely white, the white occupying about one- 
fourth of the entire length. The hairs of the fur on the buck 
are grey at the root, then brownish white ; this is followed by a 
vsliglit rusty red tint, and the points are black. On the under 
parts of the body the fur is of a palo grev hue next the skin, 
and impure white externally; on the throat, the hairs are 
uniformly white. The muffle is small, the hair terminating 
above in a lino with the posterior angle of the nostrils. 
