Several specimens of this shell were taken by the towing-net in the Indian Ocean, on the passage from the Coast of New Holland to Mauritius.

109. Janthina exigua, Lam. Hist. 6 2. 206.

Two or three species of this shell were presented to the Museum by Mr. Hunter, the surgeon to the expedition; it is proved to be very distinct from J. fragilis, from the description of its float by Dr. Coates in the transactions of the Society of Natural Science of Philadelphia. See Annals of Philosophy for 1825, page 385.

110. Hyalaea tridentata, Lam. Hist. 6 1. 286.
Monooulus telemus ? Lin. Syst. Nat. 1 1059.
Anomia tridentata, Forsk. Faun. Arab. 124.
Icon. Forsk. Faun. t. 40. f. b. Chemn. 8 Vign. 13. Cuv. Ann. Mus. 4 t. 59. Anatomy.

CEPHALOPODA.

111. Spirula fragilis, Lam. Syst. Anim. 102.
Spirula australis, Lam. Ency. Method. 465. f. 5. a. b.
Spirula peronii, Lam. Hist. 7 601.
Nautilus spirula, Lin. Syst. Nat. 1163.
Nautilus spicula, Gmel. 3371.
Icon. Lister Conch. t. 550. f.2. Martini. 1 Veg. 254. t. 20. f. 184, 185. Ency. Method. ut supra Animal.

Captain King brought home several minute species of Nautilus, which will be taken notice of at a future period, as they require particular examination and minute comparison with those found upon the coasts of Italy and other parts of Europe.

Note. Specimens of the shells in the above catalogue, to which the following numbers refer, have been presented to the British Museum, namely, 2, 5, 7, 8, 12, 13, 17, 20, 25, 28, 29, 31, 46, 48, 90, 91, 92, 94, 95, 96, 97, 98, 99, 102 and 103.


A FEW GENERAL REMARKS ON THE VEGETATION OF CERTAIN COASTS OF TERRA AUSTRALIS, AND MORE ESPECIALLY OF ITS NORTH-WESTERN SHORES.