Suctoria

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Suctoria (subphylum Ciliophora, class Ciliatea) A subclass of protozoa in which mature individuals lack both cilia and a cytostome. Mature forms typically are stalked and attached to a substrate. They have tentacles which are used for capturing and ingesting prey (mainly other ciliate protozoa). Reproduction occurs by budding, which produces free-swimming, ciliated, mouthless larval forms. There is one order (Suctorida), found in freshwater and marine habitats.