| Aspect: | Looks like a large mussel, the pointed tip of which is buried in the sand. Generally covered in algae and concretions, so difficult to assess a real colour. |
| Population: | Not abundant, but not rare either. |
| Notable feature: | Upper edge extremely thin and delicate, translucent |
| Environment: | Usually found on coral sand bottoms. |
| Behaviour: | Like all shells, will close if felt challenged. |