Family Stoichactidae contains several species of sea anemones that are known for their symbiotic relationships with fish in the Pomacentridae family. The slow moving fish find shelter in the tentacles of the anemones and may in return help provide food for the anemone.

Sea Anemones (Order Actinaria) are a group of marine animals typically found in shallow water. The mouths of these creatures are surrounded by flexible cylindrical bodies and tentacles which cause them to look like colorful flowers. Generally, sea anemones have a radial body symmetry related to the number six. They typically live as individuals attached to rocks or other corals. The individual tentacles are usually armed with stinging cells. Some sea anemones have symbiotic relationships with specific species of fish that use their tentacles for protection against predators.

Although most species are typically several inches across, some can be quite large, up to fourteen inches in diameter. A gigantic Malaysian species measures more than three feet across.

Corals and Anemones (Class Anthozoa) are marine species having about 6,000 members. They are frequently called flower animals. Scientists often call certain groups in this class by different names. The following list serves as an introduction:

      Order Alcyonaria      Corals
      Order Zoantharia      Hexacorals
      Order Actinaria       Sea Anemones
      Order Madreporaria    Stony Corals
      Order Antipatharia    Black Corals
      Order Ceriantharia    Burying Sea Anemones

Corals and Hydra Phylum (Phylum Coelenterata = Cynidaria) are a group of primitive aquatic animals. This phylum contains about 10,000 species. Following are the three main classes:

          Class Hydrozoa:   Polyps and Medusae
          Class Scyphozoa:  Jellyfish
          Class Anthozoa:   Sea Anemones/Corals

Animal Kingdom contains numerous organisms that feed on other animals or plants. Included in the animal kingdom are the lower marine invertebrates such as sponges and corals, the jointed legged animals such as insects and spiders, and the backboned animals such as fish, amphibians, reptiles, birds, and mammals.