Convoluted Barrel Sponge
| Name: | Convoluted Barrel Sponge |
| Scientific Name: | Aplysina lacunosa |
| Family: | Barrel Sponges |
| Taxonomic: | Aplysinidae |
| ID Group: | Sponges, Bryozoans, Tunicates |
| Size: | up to 3 ft. |
| Depth Range: | On the reef (10 – 60 ft.) |
| Sightings: | Seen sometimes |
This Sponge has thick-walled barrels or tubes with deep grooves. Its greenish ridges and yellow valleys create a rugged appearance.
Its textured surface often provides shelter for smaller organisms.