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Zō′nal, like a zone, arranged in zones: pertaining to the somites of an articulate or annulose animal; Zō′nary, resembling a belt or girdle; Zō′nate, marked with zones, belted; Zoned, wearing a zone, having zones; Zone′less, wanting a zone or belt.—n.

Ringed, surrounded as with a ring, annulose, annulate: wearing a wedding-ring.—ns.

Such examples, however, might be multiplied ad infinitum; and I will not therefore devote further space to the bringing together of facts which it is hardly possible will be disputed,—especially as it has been my wish, in the present chapter, merely to enumerate what the organs and characters principally are which are more peculiarly sensitive to change, throughout the Annulose tribes.

Accidental means of dissemination, such as those to which I have just alluded, and others to which we might appeal, will generally account, and with much presumptive truth, for the many exceptional cases which present themselves, during our investigation into the effects of natural barriers, as visible in the distribution of the Annulose races, on the earth's surface.

I should indeed apologize for having trespassed on the reader's attention, in wandering this far from the immediate results of subsidences,—which I proposed, at the outset of this chapter, to examine, with reference to the impeded diffusion of the Annulose races.