| Aspect: | Brown hard rubbery mass, reminiscent of a huge bubble gum that has run in the sun. |
| Population: | Common, but not ubiquitous. |
| Notable feature: |
Smooth skin, with randomly emplaced oscules (excurrent openings). "Running" aspect appears to result from loose arrangement of spicules (the latter being the sponge's structural elements)
|
| Environment: | Sheltered areas, typically under ledges and rock overhangs. |
| Behaviour: | - |