What is "vermetus"

Vermetus \Ver*me"tus\, n. [NL., from L. vermis worm.] (Zo["o]l.) Any one of many species of marine gastropods belonging to Vermetus and allied genera, of the family Vermetid[ae]. 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.

n. (context zoology English) Any of many species of marine gastropods belonging to (taxlink Vermetus genus) and allied genus, of the family ''(taxlink Vermetidae family)''.

Vermetus is a genus of sea snails, marine gastropod mollusks in the family Vermetidae, the worm snails or worm shells.

The genus Vermetus is very ancient: it occurs in the fossil record from the Jurassic to the Quaternary (age range: from 164.7 to 0.0 million years ago).