Long spined sea urchin

Animal File

Invertebrates
Carnivores
Rocky reefs
Common Name:
Long spined sea urchin
Scientific Name:
Diadema antillarum
Size: 10–12 cm in length
Africa
Europe
Ocean:
Atlantic, Mediterranean
Country:
Norway to Morocco
Conservation Status
Not evaluated

Diadema antillarum, also known as the lime urchin, black sea urchin or the long-spined sea urchin, is a species of sea urchin in the Family Diadematidae.
This sea urchin is characterized by its exceptionally long black spines.

It is the most abundant and important herbivore on the coral reefs of the western Atlantic and Caribbean basin. When the population of these sea urchins is at a healthy level, they are the main grazers which prevent algae overgrowth of the reef.

Diadema antillarum has a test, or "shell," similar to most other sea urchins. What distinguishes the Diadema is the length of its spines. Most sea urchin spines are 1–3 cm, but the spines in this species are usually 10–12 cm in length, and can grow as long as 30 cm in very large individuals.

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The health of our aquarium family, which includes our visitors, staff and animals, is our top priority. In light of the most recent advice from Public Health England and the government, we will be temporarily closing the Oceanarium Bournemouth effective immediately, until further notice.

We apologise for any disappointment and inconvenience caused.

Please be assured that our dedicated keeper team will continue to provide the best care for our animals during the closure.

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We’ll keep you informed through our website and social media channels. Thank you for your patience and we really look forward to welcoming you back to the Oceanarium when we re-open. Stay safe everyone.