Corals and Sea Anemones (Anthozoa) |
Anthozoa is subdivided into three subclasses: Hexacorallia, Octocorallia and Ceriantharia. Hexacorallia includes coral reef builders, the stony corals or “hard corals” (Scleractinia), and also black corals (Antipatharia) and sea anemones (Actiniaria). Octocorallia comprises three orders: Alcyonacea (the soft corals and gorgonians), Helioporacea (blue corals), and Pennatulacea (sea pens). Anthozoa contains over 6,000 known species.
Hexacorallia |
Sea Anemones (Actiniaria) |
Aiptasiidae |
Actiniidae |
Black corals (Antipatharia) |
Antipathidae |
Hard Corals (Scleractinia) |
Acroporidae |
Agariciidae |
Caryophylliidae |
Faviidae |
Meandrinidae |
Mussidae |
Poritidae |
Siderastreidae |
Octocorallia |
Soft Corals (Alcyonacea) |
Gorgoniidae |
Plexauridae |
Anthothelidae |
Briareidae |
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