Alcyonaria

Alcyonaria (also known as Octocorallia, as they have 8-fold symmetry) is a subclass of the class Anthozoa within the phylum Cnidaria. It includes the sea fans and sea pens, and the soft corals of the order Alcyonacea.

The subclass is divided into a number of orders; those which are extinct are marked with †.


 * Alcyonacea (soft corals)
 * Gorgonacea (sea fans, sea feathers)
 * Helioporacea
 * Pennatulacea (sea pens, sea pansies)
 * Stolonifera
 * Telestacea

Octocorallia Octocorallia Octocorallia Alcyonaria Alcyonaria Koralowce ośmiopromienne Alcyonaria Osemlúčovky Октокоралије Sulkakorallit