Zoantharia

Zoantharia is a subclass of marine animals within the class Anthozoa, phylum Cnidaria. These animals are characterized by a polyp form, which is a stalk-like structure with a mouth and tentacles at the top and attached to a surface at the bottom. Zoanthids are similar to sea anemones but are typically smaller and often have a mucous coat that collects debris. They are distinguished by a hexamerous arrangement of tentacles or septa. Many zoanthids live in close association with other marine life, such as sponges or hermit crabs.12