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Heterocentrotus trigonarius

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.

pencil urchin
Heterocentrotus trigonarius Réunion.JPG
Scientific classification
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H. trigonarius
Binomial name
Heterocentrotus trigonarius
(Lamarck, 1816)

Heterocentrotus mamillatus is a similar, related species.

ReferencesEdit