Clionaida

Clionaida is an order of demosponges in the subclass Heteroscleromorpha.

Familiae

Familiae within this order include:

Acanthochaetetidae Fischer, 1970
Clionaidae d'Orbigny, 1851
Placospongiidae Gray, 1867
Spirastrellidae Ridley & Dendy, 1886