Of the ikan layer (genus novum schombro affine) a grand specimen is preserved in the British Museum, where it was deposited by Sir Joseph Banks;* and a description of it by the late M. Brousonet, under the name of le Voilier, is published in the Mem. de l'Acad. de Scien. de Paris for 1786 page 450 plate 10. It derives its appellation from the peculiarity of its dorsal fin, which rises so high as to suggest the idea of a sail; but it is most remarkable for what should rather be termed its snout than its horn, being an elongation of the frontal bone, and the prodigious force with which it occasionally strikes the bottoms of ships, mistaking them, as we may presume, for its enemy or prey. A large fragment of one of these bones, which had transfixed the plank of an East India ship, and penetrated about eighteen inches, is likewise preserved in the same national collection, together with the piece of plank, as it was cut out of the ship's bottom upon her being docked in England. Several accidents of a similar nature are known to have occurred. There is an excellent representation of this fish, under the name of fetisso, in Barbot's Description of the Coasts of Guinea, plate 18, which is copied in Astley's Collection of Voyages, Volume 2 plate 73. (*Footnote. This fish was hooked by Mr. John Griffiths near the southern extremity of the west coast of Sumatra, and was given to Captain Cumming of the Britannia indiaman, by whom it was presented to Sir Joseph Banks.) VARIOUS FISH. To attempt an enumeration of the species of fish with which these seas abound would exceed my power, and I shall only mention briefly some of the most obvious; as the shark, hiyu (squalus); skate, ikan pari (raya); ikan mua (muraena); ikan chanak (gymnotus); ikan gajah (cepole); ikan karang or bonna (chaetodon), described by Mr. John Bell in Volume 82 of the Philosophical Transactions. It is remarkable for certain tumours filled with oil, attached to its bones. There are also the ikan krapo, a kind of rock-cod or sea-perch; ikan marrang or kitang (teuthis), commonly named the leather fish, and among the best brought to table; jinnihin, a rock-fish shaped like a carp; bawal or pomfret (species of chaetodon); balanak, jumpul, and marra, three fish of the mullet kind (mugil); kuru (polynemus); ikan lidah, a kind of sole; tingeri, resembles the mackerel; gagu, catfish; summa, a river fish, resembling the salmon; ringkis, resembles the trout, and is noted for the size of its roe; ikan tambarah, I believe the shad of Siak River; ikan gadis, good river fish, about the size of a carp; ikan bada, small, like white bait; ikan gorito, sepia; ikan terbang, flying-fish (exocoetus). The little seahorse (Syngnathus hippocampus) is commonly found here. BIRDS. Of birds the variety is considerable, and the following list contains but a small portion of those that might be discovered in the island by a qualified person who should confine his researches to that branch of natural history.