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