||Ver*me"tus (?), n. [NL., from L.
vermis worm.] (Zoöl.) Any one of many species of
marine gastropods belonging to Vermetus and allied genera, of the
family Vermetidæ. Their shells are regularly spiral when
young, but later in life the whorls become separate, and the shell is often
irregularly bent and contorted like a worm tube.