Keratosa
| Keratosa | |
|---|---|
| Chelonaplysilla violacea off Réunion | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Demospongiae |
| Subclass: | Keratosa Grant, 1861 |
| Orders | |
| |
Keratosa, the keratose sponges or horny sponges, is a subclass of demosponges.
Keratosa sponges are nonspicular demosponges with organic spongin fibers forming flexible skeletons.
Recently discovered in the Andaman and Nicobar Islands, these sponges contribute to reef structures in tropical regions.