Common name : tun shell

Aspect : medium to very large size up to 18 cm; globular, almost spherical shape resembling a wine cask; thin shell yet strong, with a low spire, a large inflated body whorl and a wide, enveloping aperture; surface displaying Wide and deep suture line, ribs, or bands in colors like white, glossy with brown-red markings, or yellow/brownish spots; the outer lip is thin, wavy, and crenulated to match the exterior sculpture; lack an operculum

Feeding : carnivorous predators ( sea cucumbers, sea urchins, starfish, crustaceans, bivalves, small fish and polychaetes or sipunculids)

Environment : tropical and subtropical marine environments worldwide, including the Indo-Pacific, Atlantic (e.g., Caribbean, Mediterranean), and regions like the Canary Islands, West Africa, and Baja California in soft substrates such as sandy or muddy seabeds, often with seagrass beds, coral reefs, bays, or coves, from the intertidal zone down to continental shelf and slope depths down to ~200 m