Typically emerge at night to feed on a wide range of prey, normally shellfish, crabs and lobsters. shell are drilled using the toothed toungue (radula) to penetrate the shell and poisen the occupant to gain entry. this species is a generalist predator and will also take a wide range of other prey.
In summer mature animals move into deeper waters to mate. the male passes a metre long sperm pakage to the female, inserting it within her long oviducts. In fall and winter the animals migrate back into shallow waters to spawn, females typically brooding their eggs in depths of less than 50 m.
females can produce up to 100000 eggs are laid in long strings typically attached to the roof of crevices. Egg development typically takes around 5-6 months. this species is collected in small to medium sized harvests as food and or bait, typically caught using pots or traps.