These birds vary much, the colours being more or less brilliant, and in some of them the tail is wholly barred with white and black, and the legs brown or blackish. This species inhabits various places in the South Seas, being pretty common at New Guinea; but the specimen from which our figure was taken, was sent from Port Jackson in South Wales, where, likewise, it is not unfrequently met with. We believe it has not yet been figured in any British work. KANGUROO. This very curious animal being naturally an object of particular curiosity, we are happy to be enabled, before this book is given to the world, to correct some errors which had crept into our account and representation of it. In page 149 it is stated, that the Kanguroo has four teeth (by which were meant cutting teeth) in the upper jaw, opposed to two in the under. The truth is, that there are six opposed to two, as may be perceived in the engraved representation of the skeleton of a Kanguroo's head, inserted at page 168. The same arrangement of teeth takes place in the Opossum, described in that page, which is there, still more erroneously, said to have only two cutting teeth opposed to two. This latter mistake arose from the difficulty of examining the mouth of the living animal. It is since dead, and the teeth are found to be disposed as now stated, and as represented in the scull of the Vulpine Opossum, in the same plate with that of the Kanguroo. But the most important error is in the position of the Kanguroo, as represented in our plate at page 106. The true standing posture of the Kanguroo is exactly the same as that of the Kanguroo Rat, delineated at page 277; namely, with the rump several inches from the ground, (in large specimens, not less than eight) and resting entirely on the long last joint of the hinder legs, the whole under side of which is bare and callous like a hoof. This mistake was occasioned merely by the adherence of the engraver to the drawing from which he worked; which, among others, came from Mr. White, the surgeon at Port Jackson: too implicit reliance being placed on an authority which, in this respect, turned out delusive. With respect to the representations of the Kanguroo which have hitherto been published, it may be observed, that nothing is wanting to that in Captain Cook's first voyage, except the character of the toes of the hinder legs, and in particular the distinguishing of a minute, but very characteristic circumstance, in the inner claw of each, which is divided down the middle into two, as if split by some sharp instrument. The same remark is applicable to the plate in Mr. Pennant's History of Quadrupeds, which appears to have been copied from the other. Mr. Pennant was the first author who gave a scientific description of the Kanguroo, in his History of Quadrupeds, p. 306. No. 184. and of the New Holland Opossum, p. 310. No. 188.