Chicoreus capucinusThe mangrove murex is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.Distribution and habitatThese sea snails are widespread in the Indo-Pacific, from Philippines and Australia to Fiji and the Solomon Islands. They live in mangroves and mud flats.DescriptionShells of Chicoreus capucinus can reach a size of. These large shells are heavy and solid, elaborately textured, uniformly dark brown, with six convex whorls. They are sculptured with prominent spiral cords, axial ribs and striae. The aperture is rounded or oviform, brown tinged and the inner labial edge show 14–17 denticles. The siphonal canal is quite long. The operculum is dark brown.BiologyThese voracious predators feed on the barnacles growing on mangroves and on mussels, snails and worms.