_Var._ (reversed.) _A. perversa._ _Zool. Illust._ _vol._ 1. _pl._ 30. * * * * * I have not the least doubt that this shell is specifically the same with that figured at Plate 30 of this work: it has only recently come under my inspection, and I therefore hasten to give a further illustration of this beautiful species, and to substitute a new specific character, which will be applicable to both varieties. Although much more ventricose than the reverse variety, this has the same unusual formation of that part of the columella seen at the base of the mouth, where it is very thick, and appears as if swelled: the epidermis, in this specimen, obscures the white ground colour of the shell. I have seen also another variety, even more slender than that at Plate 30, and with the aperture not reversed. These new facts point out the necessity of the specific name of _perversa_ being changed to one more applicable. The figure is from a specimen lent to me by Mr. Dubois, and is probably from Brazil. * * * * * Pl. 153 [Illustration] STROMBUS lobatus, _Lobed, or Brindled Strombus._ * * * * * GENERIC CHARACTER.--See Pl. 10. * * * * * SPECIFIC CHARACTER. _S. testa nodulosa; spira brevi, inermi; labio exteriore supra repando, bilobo, margine crasso, reflexo; apertura laevi, rubescente; canale brevi._ Shell nodulous; spire short, unarmed; outer lip above spreading, two-lobed, margin thick, reflected; aperture smooth, reddish; channel short. _Seba_, _tab._ 62. _f._ 4. 5. (_optime_) 9. 12. 14. 15. 27. _tab._ 63. _f._ 6. _Mart._ 3. _tab._ 83. _f._ 836, 837. _Gualt._ _tab._ 32. _f._ F. _Knorr_ 3. _tab._ 11. _f._ 1-6. _tab._ 29. _f._ 8. Strombus Gallus, ([beta]) _Gmelin_, 3511. 11. S. Raninus, _Gmelin_, 3511. 10. _S. bituberculatus_, _Lam. Syst._ 7. _p._ 202. 6 * * * * * It will appear extraordinary, that this very common shell should have been unknown to Linnaeus; and still more, that no other systematic writer should have noticed it, excepting Gmelin, by whom it is placed as a variety of _S. gallus_, although his _S. raninus_ is obviously made from a bad figure in Knorr of this same shell. On referring to Mr. Dillwyn's account of _S. gallus_, I find all the references of Gmelin to this shell expunged; and a note at the head of the genus states, that _S. raninus_ is undeserving of notice; thus every trace of the shell, in this work, is altogether lost.