Keratosa

Keratosa, the keratose sponges or horny sponges, is a subclass of demosponges.

[2] Keratosa sponges are nonspicular demosponges with organic spongin fibers forming flexible skeletons.

[3][4] Recently discovered in the Andaman and Nicobar Islands, these sponges contribute to reef structures in tropical regions.

This article about a demosponge is a stub.

You can help Wikipedia by expanding it.