Characteristics
| Classification | order: Diadematoida; family: Diadematidae |
|---|---|
| Habitat | live along the coasts of the Indo-Pacific and its marginal seas, in mudflats and on seagrass beds at depths of up to 30 meters |
| Größe | diameter: up to 90 mm; height: up to 40 mm; spike length: up to 15 cm |
| Gewicht | 35-80 g |
| Sozialstruktur | some live in colonies to protect themselves from predators |
| Diet | algae that are grazed off hard surfaces |
| Feinde | larger triggerfish and pufferfish |