526 Mr. Vigors on some new subjects of Zoology. tuyaiLv capillaires sont distantes les unes des autres et un peu inclinees. Favart D'llerbigny, Diet. ij. p. 444. De Montfort, who considers this shell as the type of his genus Clithon, (vol. ii. p. 327) observes in his description, " Son dos est charge d' epines longues arquees, dont la derniere percee forme un sinus a la levre exterieure, les autres sont successivement obliterees. I might adduce other testimonies to the same effect, but as I trust that these are sufficient to prove that the statements I formerly advanced are fully borne out by evidence, I shall abstain from fur-ther remark, relying on your liberality for the insertion of this necessary defence of the accuracy of my observations. I remain, yours truly, Nov. 3, 1824. John Edwaud Gray. Note. — During the time that this letter has been passing through the press, the Baron de Ferussac has published his remarks on Mr. Swainson's and my papers, in his Bulletin des Sciences Naturelles, [November, p. 318,] in which he agrees with me in all the main points of my observations, and has also referred to many of the above quoted Synonyma and plates. J. E. G. Art. LXV. Descriptions of some rare, interesting, or hitherto unch'aracterized subjects of Zoology. By N. A. Vigors, jun. Esq. M.A. F.L.S. With Figures by James De Carle Sowerby, Esq. F.L.S. [Continued from p. 418.] Classis. Aves. Auct. Fam. Psittacid.s:. Leach. The vast recesses of Australasia, which have supplied the na-turalist with so many distinct and varied forms in every brancli of Zoology, have presented no groups where the general structure is marked by more distinguishing, and if I may use the word, national, peculiarities than the family before us. The Parrots of that great division of the globe are not merely numerous in
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