Actiniaria

order of cnidarians Actiniaria (Actiniaria) is an order comprising closely related families of organisms. It contains 10 families with 32 known species. Key family groups include Actiniidae, Actinostolidae, Diadumenidae, Edwardsiidae, Gonactiniidae, and Halcampidae. Among its members, 4 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Anthozoa (Anthozoa).