PORCUPINE ANT-EATER, OR ECHIDNA.—Ecvidna Hy-trix. 
another species of this curious animal, very similar im every respect except that oc 
colour, which is of a darker brown, instead of the black and white which decorates the 
spines of the common Echidna. Its scientific title is Kcehidna setosa. The Echidna is 
tolerably widely spread over the sandy wastes of Australia, but has not been seen in the 
more northern portions of that country. 
SLOTH.—Cholapus diddctylus. 
Ty the last group of the mammalia, we find a very remarkable structure, adapted 
to serve a particular end, and long misunderstood by zoologists. The common SLOTH, 
sometimes called the Two-rorp SLoTH, is a native of the West Indies, where it is not 
very often seen, although it is not a very uncommon animal. 
The peculiarity to be noticed in all the Sloths, of which there are several species, is, 
that they pass the whole of their lives suspended, with their backs downwards, from the 
branches of trees. The Sloth never gets upon a bough, but simply hooks his curved 
