Heterocentrotus trigonarius
| Heterocentrotus trigonarius | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Camarodonta |
| Family: | Echinometridae |
| Genus: | Heterocentrotus |
| Species: | H. trigonarius |
| Binomial name | |
| Heterocentrotus trigonarius (Lamarck, 1816) | |
Heterocentrotus trigonarius, commonly known as the slate pencil urchin or red slate pencil urchin, is found in the tropical waters of the Indo-Pacific region. Heterocentrotus mamillatus is a similar, related species.
Heterocentrotus trigonarius can grow to 30 cm (12 in) in diameter (spine-to-spine). The spines are potentially harmful to humans if trodden on.