Field notes
Encounter profile
Identified using iNaturalist, WoRMS.
Echinothrix calamaris - Echinothrix is a genus of sea urchins which was first described in 1853 by Wilhelm Peters, a German naturalist and explorer.
Species profile
Echinothrix calamaris
Identified using iNaturalist, WoRMS.
Archive ecology
SNAP observations, not the species’ full biological range.
Early archive signal · 2 observations / 2 dives
Calendar-quarter observations
Camera-clock comparison
Creature trail
Species field guide
Field notes
Identified using iNaturalist, WoRMS.
Archive
2 media items
Optional context
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Species photographed on the same dives come first, followed by close taxonomic neighbours.





