It looks like a worm, but it is a bivalve mollusk found in the coastal mangroves of Pará and Marajó Island, where they live buried in the wood of fallen trees. With delicate flavor, naval shipworms can be added to broths and soups, breaded and deep-fried, or sautéed. The marajoaras – inhabitants of Marajó Island – often eat them fresh out of the shell, raw, only dressed with lemon juice and a pinch salt.