The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . uttles in a very thin, spiral shell, which, from thedisproportionate size of the last whorl, hassome resemblance to a canoe, the spire repre-senting the poop. The animal uses it too as aboat, for when the sea is calm, groups of themhave been seen navigating the surface in it,employing six of their tentacula for oars, andraising, it is said, the two with expanded ex-tremities to serve the purposes of sails. If thewaves rise, or any danger thre
The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . uttles in a very thin, spiral shell, which, from thedisproportionate size of the last whorl, hassome resemblance to a canoe, the spire repre-senting the poop. The animal uses it too as aboat, for when the sea is calm, groups of themhave been seen navigating the surface in it,employing six of their tentacula for oars, andraising, it is said, the two with expanded ex-tremities to serve the purposes of sails. If thewaves rise, or any danger threatens, the Argo-naut withdraws all its arms into the shell, con-tracts itself there, and descends to the body does not penetrate within the spire of51 —.AcLionauiii thc shcll, nwA it appcars does not adhere to it, at least there is no muscular attachment, and this fact has led some authors to think that the Cuttle isa parasite of the same nature as thg Hermit-crab ||; but as it is always found in the same shell, as wenever find any other animal there, although it is very common, and naturally adapted for rising to the. in bet t The discoveries of Mr. Owen liavc proved the iiecesBity of dividirthe cIms into tteo orders:—1. UlBftANC-uiATA, with two brancliiO!, iwbiehaU the naibe<f Cuttle-fisb are examples; and,2. TxtraurancuATA, with four brancbix, as in Nriutihil, and as supposed to have beein the fossil Cephalopodes^—Ed. t In Blainvillcs system ibey form the older Cryptodihranchiatft. ^ This fact needs confirmation ; and we need scarcely add, that llstories of their smiling boats and ships are entirely fabulous.^Eo II Hence M. Rafincsqucanimal a genus under thebeing a parasite was, untjbut that advocated by , and others folioveing him, have made thename Ocythoc. [Certainly the opinion of itsI recently, entertained by most naturalists ;1 greatly s proved, by the experiments of Mrs. Power. See the ilaf;. ojNatura,Hiltory, conducted by Mr
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Keywords: ., bookauthorwe, bookcentury1800, bookdecade1840, booksubjectanimals
