This extraordinary creature has the bill and webbed feet of a duck, united to the body of a mole. It is a native of Australia, where it is found on the banks of rivers, in the sides of which it burrows and forms its nest. It feeds on aquatic insects and small molluscous animals, always, however, rejecting the shells of the latter, after crushing them in its mouth, so as to extract the body. A number of these animals are always found together; but it is very difficult to watch their habits, as their sense of hearing is so acute, that they disappear at the slightest noise, plunging into the water, in which they swim so low, that they only look like a mass of weeds floating on the surface.
When the animal feeds, he plunges his beak into the mud, just like a duck; and appears to be equally at home on land and in water. Two young ones that were kept for some time at Sydney, by Mr. Bennet, were very fond of rolling themselves up like a hedgehog, in the form of balls. They often slept in this position, and “awful little growls” issued from them when disturbed. They were fed with worms, and bread and milk; but captivity did not seem to agree with them, and they soon died. They dressed their fur by combing it with their feet, and pecking at it with their beaks, seeming to take great delight in keeping it smooth and clean.
The shape of this animal is so extraordinary, that when a specimen was first sent to Europe, it was supposed to have been manufactured, by fixing the beak of a duck into the head of some small quadruped, with the intention to deceive. Subsequent experience has proved, beyond the possibility of a doubt, the existence of the animal, without in the smallest degree diminishing the wonder excited by its first appearance, as it seems to partake, in almost equal parts, of the nature of quadrupeds, birds, and reptiles.
The Australian Hedgehog (Echidna hystrix), has a long and very slender muzzle, at the end of which is a very small mouth, containing a long tongue, which the creature can extend at pleasure. The body is short and rounded: it is covered with strong sharp spines mixed with hair; and its tail is so short that it was at first doubted whether it had one. The male has a spur upon each hind leg, which was long supposed, but it seems erroneously, to possess venomous properties. Both the Platypus and the Australian Hedgehog, although arranged here with the toothless quadrupeds, are generally considered by zoologists to be most closely related to the Marsupials, or Pouched Mammalia.
§ VII.—Pachydermata, or Thick-skinned Animals.
