Heteroscleromorpha is a subclass of

demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a har ...

s within the phylum Porifera.van Soest, R. (2016)
Heteroscleromorpha.
Accessed through: World Register of Marine Species on 2017-02-17.

References

Sponge subclasses Taxa named by Nicole Boury-Esnault {{Demosponge-stub