Gymnolaemata [klasse]
(76 soorten in totaal / 63 gevestigd)

Ctenostomatida [orde] (29/25)

Alcyonidiidae [familie] (10/9)

Arachnidiidae [familie] (2/1)

Buskiidae [familie] (1/1)

Flustrellidridae [familie] (1/1)

Hislopiidae [familie] (1/0)

Hypophorellidae [familie] (1/1)

Nolellidae [familie] (2/1)

Paludicellidae [familie] (1/1)

Panolicellidae [familie] (1/1)

Triticellidae [familie] (3/3)

Vesiculariidae [familie] (4/4)

Victorellidae [familie] (1/1)

Walkeriidae [familie] (1/1)