Sea urchins

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Sea urchins

Aspidodiadema cf. hawaiiensePlesiodiadema sp.Plesiodiadema sp.Stereocidaris hawaiiensisStereocidaris hawaiiensisDiadematoida
Tromikosoma hispidum?Tromikosoma hispidum?Tromikosoma hispidum?Tromikosoma hispidum?Sperosoma sp.?Sperosoma sp.?
EchinothuriidaeHistocidaris variabilisHistocidaris variabilisCaenopedina hawaiiensisCaenopedina hawaiiensisCaenopedina sp.?