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Black Longspine Urchin

Diadema setosum

Description:

It is a typical sea urchin, with extremely long, hollow spines that are mildly venomous. The animal's internal organs are enclosed within a spherical, black test or hard shell that is essentially the body of the organism. A clear distinguishing characteristic of the species is the presence of a orange ring, the anal cone and five white spots around it.

Habitat:

In shallow sea near the beach.

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arne.roysland
Spotted by
arne.roysland

Alaminos, Ilocos Region, Philippines

Spotted on Feb 25, 2024
Submitted on Mar 4, 2024

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