Halichondriidae
Encyclopedia
Halichondriidae is a family of marine demosponge
s belonging to the order Halichondrida
. These sponges have a skeleton consisting of dense bundles of spicules occurring in a more or less random pattern.
Demosponge
The Demospongiae are the largest class in the phylum Porifera. Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. Where spicules of silica are present, they have a different shape from those in the otherwise similar glass sponges...
s belonging to the order Halichondrida
Halichondrida
Halichondrida is an order of marine demosponges. Demosponges with simple spicules and a generally confused skeletal arrangement are presently grouped into this order although its monophyly is considered suspect and further taxonomic revision can be expected....
. These sponges have a skeleton consisting of dense bundles of spicules occurring in a more or less random pattern.