iNat·122164SpeciesAnimalia1,033 field observationsThe Nature Library · Open stacks
- Animals
- ›Echinoderms
- ›sea urchins and sea cucumbers
- ›Sea Urchins, Sand Dollars, and Heart Urchins
- ›sea urchins
- ›Aulodonta
- ›Diadematacea
- ›Diadematoida
- ›Diadematidae
- ›Echinothrix

Blue-black Urchin
Echinothrix diadema
The diadema urchin or blue-black urchin (Echinothrix diadema) is a species of tropical sea urchin, member of the Diadematidae family.
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Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
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Every page naming Echinothrix diadema in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 122164.