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hairs; but these areof a more brilliant rusty-red colour than in that 
animal. 
The fur is very long, dense, and rather soft to the touch ; on the 
back it is of a black colour next the skin, yellowish white towards 
the apex, shaded into deeper yellow still nearer to the point, and 
black at the point. On the hinder part of the back the portion of 
each hair, which is yellow on the back, is replaced by white, and 
there is an oblique white mark on each side of the rump. The fur 
on the side of the body is deep grey next the skin, brownish yellow 
in the middle, and this is followed by black, then whitish, and at the 
point black. On the under part of the body the fur is ash-coloured 
next the skin, and white externally, excepting on the sides of the 
belly, where they are of a rusty yellow hue externally. The hair 
on the upper surface of the head is black, freely pencilled with yel- 
lowish white; a broad space round the eye is covered with bright 
rusty-red hairs, and this hue, though less bright, is extended back- 
wards beneath the ear. The lips and chin are dirty white; the 
throat is white. The ears are very small and somewhat pointed ; 
internally they are clothed with whitish hairs, and externally with 
dirty white hairs on the apical portion, but towards the base there is 
an admixture of black. ‘The fore- and hind-legs and feet are pale, 
the hairs being dirty white at the point and brown next the skin. 
The tail is slender, and being but sparingly clothed with short dirty 
white bristly hairs, exhibits scales ; on the under surface it is more 
densely clothed, and the hairs are longer and of a dirty yellowish 
hue. 
This new species was transmitted to Mr. Gould for description by 
Capt. Wickham, of H.M.S. ‘ Beagle.’ 
