Cerianthus filiformis, known commonly as the tube anemone, is a species of marine Cnidaria in the family Cerianthidae. Cerianthus filiformis is widespread throughout the tropical waters of the Indo- west Pacific area. Cerianthus filiformis,whose physical resemblance can be open to confusion with its cousin the sea anemone, has a stretched and muscularised body which can reach 35 cm. This latter has the shape of a big polyp with numerous mobile tentacles. Cerianthus filiformis feeds on all the small-sized and edible drifting food which pass within the reach of its tentacles.