ACTINOZOA

in zoology, a cla of the Ccelentera, animals of a low type of organization, distinguished by conspicuous radial symmetry. They are divided into two sub-cia es. Zoantharia and Alcyonaria, the former including sea-anemones, stony corals, and black corals, and the latter the precious red coral, sea-fans, and _ sea-pens. } The cla is sometimes known as Anthrozoa.