Heterocentrotus trigonarius
| pencil urchin | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Echinoida |
| Family: | Echinometridae |
| Genus: | Heterocentrotus |
| Species: | H. trigonarius |
| Binomial name | |
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Heterocentrotus trigonarius (Lamarck, 1816) |
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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.
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Wikipedia