Holaxonia

Holaxonia
Pinnigorgia sp.
Scientific classification
Kingdom: Animalia
Phylum: Cnidaria
Subphylum: Anthozoa
Class: Octocorallia
Order: Alcyonacea
Suborder: Holaxonia
Studer, 1887
Families

See text

Holaxonia (English name: holaxonians) is a former Octocorallian suborder of the order Gorgonacea (English names: gorgonians or sea fans), or alternatively of the broadly conceived order Alcyonacea. Before 1981/1999, Holaxonia usually also included the taxon Calcaxonia (informal name: restricted Holaxonia).

Since a 2022 revision of the Octocorallia, the content of the former Holaxania has been included in the new order Malacalcyonacea, within which it does not form a monophyletic group (clade) and has no name. The two Holaxonian genera Dendrobrachia a Ideogorgia are an exception in that they have been included not in the order Malacalcyonacea, but in the order Scleralcyonacea.

Vernacular names of certain members of Holaxonia include: sea fan, sea whip, sea rod, and sea blade.

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