The Family Terebridae, commonly referred to as auger shells or auger snails. This is a family of small to large predatory marine gastropods.These gastropods have extremely high spired shells with numerous whorls, and the common name refers to the resemblance of their shells to rock drill-type drill bits.
These snails are sand-dwelling carnivores which live in warmer waters. In most species, a venomous barb similar to that of the cone snails, is used to stun and immobilize prey, which typically consists of various marine worms.
Myurellopsis undulata, common name the undulate auger, is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.