| Clue | Source | Date |
|---|---|---|
| Marine invertebrate such as the starfish | The Times Specialist Sunday | 05 Apr 2026 |
| Heroic men at sea bringing in dead marine creature | ||
| Inside echo in the German male sea-urchin (10) | ||
| Starfish or sea urchin, in a biology text | New York Times | 18 Oct 2022 |
| Duke among heroic men tortured spineless animal | ||
| Sand dollar or starfish | Newsday | 23 Dec 2016 |
| Time lost in endothermic modification by one of the marine invertebrates | ||
| Starfish. |