BRUSH-TAILED POUCHED MOUSE, OR PHASCOGALE.
A slender and graceful animal, the largest of the thirteen known species, and about the size of an ordinary rat.
Many of the smaller members of this tribe are no larger than mice; and in one form, known as the Jerboa Pouched Mouse, inhabiting Queensland and New South Wales, the hind limbs are abnormally prolonged, and the animal progresses by leaps and bounds, after the fashion of the true jerboas, or its nearer relatives, the ordinary kangaroos and rat-kangaroos.
The Banded Ant-Eater.
One of the most interesting from the zoologist's standpoint, and the last on our list of the Australian marsupials, is the little creature, limited in its habitat to Western Australia, locally known as the Squirrel. The Banded Ant-eater, with reference to its striped ornamentation and ant-eating habits, is the name by which it is usually chronicled in natural history works. In size and shape, except for its more pointed snout, its squirrel-like aspect is certainly somewhat striking. Like the true ant-eaters of the Edentate Mammalian Order, it, however, possesses a long protrusile tongue, with which it is accustomed in a similar manner to lick up the ants which constitute its main food-supply.
The most interesting biological peculiarity of this animal is the abnormal development of its teeth. These number as many as from fifty-two to fifty-six, and exceed the dental formula of any other known existing marsupial. The usual colour of this interesting little animal is a warm chestnut-brown, banded transversely over the back with white, these stripes being widest and most conspicuous over the hindquarters. This somewhat paradoxical marsupial possesses no pouch, the young, when first born and attached to the nipples in the manner characteristic of ordinary marsupials, being covered over and concealed among the longer hairs that clothe the abdominal region. In the dasyures, or native cats, previously described, the pouch exists only in a rudimentary condition, its function being fulfilled by merely a few skin-folds; while in the "tiger" and native devil the pouch, contrary to that of the kangaroos, opens backwards.
In disposition the banded ant-eater presents a marked contrast to that of many of the preceding types. Caught in its native habitat, it does not attempt to bite, and soon becomes reconciled to captivity. The peculiar nature of its diet, however, militates against its being easily transported over-sea from the Antipodes.
The American Opossums.
The little group of the American marsupials contains some three or four generically distinct types whose relationship with the Australian members of the order is in the direction of the dasyures and bandicoots rather than with the kangaroos and phalangers. Included in one family, they are popularly known as Opossums, but differ among themselves very considerably both in aspect and habits. The most remarkable among them is undoubtedly the so-called Yapock, or Water-opossum, an inhabitant of South America, and ranging in its distribution from Guatemala to Brazil. In both form and habits this animal so closely resembles an otter that it was referred by the earlier naturalists to the Otter Tribe. It tunnels holes in the banks of the rivers it frequents, and feeds entirely upon fish, crustacea, and aquatic insects. The feet, and more especially the hind ones, are distinctly webbed; the tail is naked, scaly, and non-prehensile; and the fur is short and thick, as in the ordinary otters. The ground-tint of the fur is a light grey: this is diversified by a black or dark brown stripe that runs down the centre of the back, and expands over the shoulders, loins, and hindquarters into saddle-shaped patches or bands of the same dark hue.
