Aspect: | Relatively squat white-ish polyp body crowned by two rows of yellow or brown tentacles numbering a total of 28. Slit mouth is visible in the centre of the oral disc on close-up views. |
Population: | Regularly abundant. |
Notable feature: | Hundreds of polyps may densely colonise a variety of sponges and develop a network of stolons that link their gastric cavities (stolons can be seen on one of the close-up views herewith). |
Environment: | In sponges located in gently swept waters. |
Behaviour: | - |