| Aspect: | Dark red and brown carapace; green eyes. |
| Population: | Occasional (but also difficult to spot). |
| Notable feature: | Has near-black and white pincers; paddled rear legs (like Ocellate Swimming Crab, q.v.) that enables it to swim away fast. |
| Environment: | Recesses and inside vase or barrel sponges. |
| Behaviour: | Must be approached causiously or will swim away. |