Red Encrusting Sponge
| Name: | Red Encrusting Sponge |
| Scientific Name: | Monanchora arbuscula |
| Family: | Encrusting Sponges |
| Scientific Family: | Crambeidae |
| Source: | WoRMS AphiaID 169016 |
| Size: | up to 10 in. |
| Depth Range: | On the reef (10 – 60 ft.) |
| Sightings: | Seen sometimes |
The Red Encrusting Sponge grows flat on the surface and is bright red or dark red. It may form small lumps and has thin walls. Cone-shaped openings are often visible, with dark red canals radiating outward. White areas may appear between these openings.