Waved whelk

A waved whelk is able to detect its prey chemically, using its siphon. Once it has captured a victim, it grates its long, toothed tongue over its surface. These molluscs hide under the sand from their predators, leaving only their siphons exposed in order to breathe in water and oxygenate their gills. These marine snails interfere with the lobster fishery by eating bait set out in traps.