nodulous

Shell nodulous; inner lip smooth, whitish; outer lip inflected, above sinuated, within striated, blackish purple; basal lobe not toothed.

Shell nodulous; spire short, unarmed; outer lip above spreading, two-lobed, margin thick, reflected; aperture smooth, reddish; channel short.

Shell nodulous, outer lip above rounded, attached to the spire, deeply bilobated, margin thick, inflexed, slightly nodulous; basal lobe toothed; aperture smooth.

I have neither of these shells at present before me; but if Lamarck's description of them, and the figures which he has cited, be correct, I have no doubt they are but one species; V. polyzonalis being the smooth, and V. fulva being the nodulous variety of Solander's V. virescens.

Basal whirl nodulous; spire short, nearly smooth, with a sulcated line parallel with the suture; outer lip above gibbous, the margin straight; inner lip thick, both striated; aperture flesh colour; base truncated.