Calcifibrospongiidae is a family of sponges belonging to the order Haplosclerida. The order Haplosclerida is distinguished by isodictyal skeleton (mesh shaped fibres). In general, Porifera are basal animals with bodies full of pores and channels. Calcifibrospongiidae includes the species Calcifibrospongia actinostromarioides. There have only been ten recorded occurrences of this species: in Hogsty Reef and San Salvador, as well as in the subtropics of the Bahamas.