 | Blue sea star (Linckia) |
 | Blue sea star (Phataria) |
 | Bradley's sea star |
 | Chocolate chip sea star |
 | Cushion star |
 | Panamic Cushion star |
 | Pyramid sea star |
 | Sunflower star |
 | True star |
| Blue sea star (Linckia) |
| Blue sea star (Phataria) |
| Bradley's sea star |
| Chocolate chip sea star |
| Cushion star |
| Panamic Cushion star |
| Pyramid sea star |
| Sunflower star |
| True star |
 | Eucidaris thouarsii |
 | Eucidaris tribuloides |
 | Green sea urchin |
 | Hat-pin sea urchin |
 | West Indian sea egg |
 | White sea urchin |
 | Urchin tests |
 | Galápagos sand dollar |
 | Ocherous sea biscuit |
