Echinothrix diadema
Blue-black Urchin
As recorded: Echinothrix diadema (Linnaeus, 1758)
Animalia › Echinodermata › Echinoidea › Diadematoida › Diadematidae
- Collected by
- C.H. Edmondson
- Locality
- Olowalo
- Island
- Maui
- Region
- United States
- Record type
- Preserved specimen
Echinothrix diadema observed alive
Since 2000, iNaturalist observers have recorded 539 research-grade sightings in the wild, most recently on 2026-10-07.
2026-10-07
Indian Ocean, 南马洛斯马杜卢, MV
(c) joyywu, some rights reserved (CC BY-NC)
2026-10-05
Alifu Dhaalu Atoll, Maldives
(c) Elina Le Verche, some rights reserved (CC BY-NC)
2026-10-04
Hawaii Kai, Honolulu, HI, USA
no rights reserved
2026-10-03
Honolulu, HI, US
(c) tristanbfried, some rights reserved (CC BY-NC)
2026-09-30
South Pacific Ocean, Polynésie française, PF
(c) Sylvie Omnès, some rights reserved (CC BY-NC)
2026-09-30
South Pacific Ocean, Polynésie française, PF
(c) Sylvie Omnès, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Echinothrix diadema. BPBM 1231. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 36611670. Accessed via explore.bishopmuseum.org/specimens/w/1231.
Record sources
- GBIF occurrence 36611670 ↗
- Data license: CC0
- Last harvested October 26, 2026