| Class | Order | Family | Genus species | Images | Notes | Author | Char |
|---|---|---|---|---|---|---|---|
| Demospongiae | Agelasida | Astroscleridae | Ceratoporella nicholsoni | 9 | Pink to yellowish, rounded masses, reminiscent of baby butts. Stony hard owing to its calcareous basal skeleton, which makes it a sclerosponge. Spicules are acanthostyles, curved, 120-310 µm. Found in mid depth (15 m) and deeper reef crevices. | (Hickson, 1911) | orange,cream,cinnamon-tan,yellow,encrusting,massive,hard |
