The mention of this circumstance, which at this distant period can be little known, is moreover of some importance, because as the shells were really brought from Otaheite, it has been generally supposed to be a native of that island, and has even sometimes been called the Otaheitan Cowry. Gmelin, who records this shell under the name of Cypræa Aurantium, speaks of it as a native of the Friendly Isles, “habitat ad insulas amicas,” resting his authority, we apprehend, upon the Conchology of Martyn, and which though published shortly after the return of Captain Cook, could not be so well informed upon the subject as the venerable friend who assured us it is neither a native of Otaheite, nor the Friendly Islands. Lamarck has subsequently observed that the species inhabits the seas of the Friendly Islands as well as those of Otaheite, and also of New Zealand. Upon what authority the _localities_ have been increased to this extent is not stated. We have understood from very good authority that researches have been made repeatedly of late years by our navigators to discover the shells in those seas, and without effect; and this fact appears to be confirmed from the increasing value and importance attached to the species. We are indeed not entirely certain that any of these shells have ever been procured, except as before observed from among the natives of Otaheite, and the value of the shell has progressively advanced in consequence from four, or five, to ten pounds. A specimen in the collection of Mrs. Angus sold about three years ago in London for twenty guineas; thirty guineas have been in vain offered for another specimen within the last two or three years, and a collector at this period in London is in possession of another which it is understood cost him very lately fifty guineas. These circumstances, if we mistake not, conspire to prove, that the Orange Cowry is a far more local species than might be inferred from the observation of Lamarck. Besides the name of Otaheitan Cowry, this shell has been also called the “Orange Cowry,” and the “Morning Dawn,” in reference to the latin “Cypræa Aurantium,” and “Aurora,” by both which it had been at different times distinguished. That of Aurantium alludes only to the prevailing orange colour of the shell, and has been given to it by Gmelin after Martyn. There is something more poetically elegant, and perhaps no less appropriate in the trivial name Aurora, which Lamarck adopts: we may in truth compare its beauteous fulvous hues fading into white with inexpressive softness, to the warm glowing tints and fainter blushes of an opening morning sky in summer. We have also adopted this name as well as Lamarck, for its peculiar elegance, in preference to that of Aurantium.