Entoproct

Entoprocta, also called Kamptozoa and commonly known as goblet worms, is a phylum of mostly sessile aquatic animals ranging from 0.1 to 7 millimeters long. Mature individuals are goblet-shaped and sit on relatively long stalks, with a crown of solid tentacles whose cilia draw food particles toward the mouth; both the mouth and anus lie inside this crown, distinguishing entoprocts from the superficially similar bryozoans, whose anus lies outside a crown of hollow tentacles. Most entoproct families are colonial, and all but two of the phylum's 150 species are marine, though a few solitary species can move slowly.