This dog, however, seems to be quite a distinct species from that found in the South Sea Islands, which Forster describes as being "of a singular race: they mostly resemble the common cur, but have prodigious large heads, remarkably little eyes, prick ears, long hair, and a short bushy tail. They are chiefly fed with fruit at the Society Isles; but in the Low Isles and New Zealand, where they are the only domestic animals, they live upon fish. They are exceedingly stupid, and seldom or NEVER BARK, only howl now and then." Forster's Observations, page 189. 3. Otaria cinerea, Peron et Lesueur. Voyage aux Terres Austral. ij. 75. The head of a species, agreeing with the short description of Peron, was brought home by the expedition, but that it is the one intended by these authors, there is great room to doubt. I am informed that specimens of Peron's animal are in the Paris Museum, but Desmarest and Frederic Cuvier, who have both lately written upon seals, have only copied the very short specific character given by Peron. The head of our specimen is gray, covered with rather short, rigid, hairs, and without any woolly fur. The ears are short, conical. It is very distinct from the Otaria Falklandica of Desmarest (the Phoca falklandica* of Shaw) by the want of the woolly substance under the hair (called fur by the seal-fishers) and by the length of the ear, which in the latter species, described by Shaw, is long and awl-shaped. (*Footnote. The specimen in the Museum, which I take for this species, was brought by Captain Peake from New South Shetland: it differs from Pennant's, and consequently from all succeeding descriptions that are taken from him, in having five instead of four claws and toes to the hind foot.) Captain King in his manuscript observes, that this seal is found at Rottnest Island on the West Coast, and at King George the Third's Sound. It appeared also to be the same species that frequents Shark's Bay; and, if it is M. Peron's Otaria cinerea, it is also found as far to the eastward as Kangaroo Island. The head is deposited in the Linnean Society's collection. 4. Petaurista sciurea, Desm. N. Dict. H.N. 25 403. Didelphis sciurea, Shaw's Zool. 1 t. 113. Sugar Squirrel, Colonists of Port Jackson. A well preserved natural skeleton of this animal was brought home and deposited in the British Museum. 5. Acrobata pygmaea, Desm. Mamm. 270. Didelphis pygmaea, Shaw's Gen. Zool. 1 t. 114. Phalangista pygmaea, Geoffr. manuscripts. Petaurus pygmaeus, Desm. N. Dict. H.N. 25 405. Opossum Mouse, Colonists at Port Jackson. This little animal, the smallest and most beautiful of the opossum tribe, is exceedingly numerous in the vicinity of Port Jackson. It was first described by Dr. Shaw in his Zoology of New Holland. There are several specimens in the Linnean Society's collection. The above is placed in the British Museum.