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Description
Pacific Ring of Fire Expedition. Stalked crinoid (~ 5 inches across, ~13 cm)on the caldera seafloor at West Rota volcano. Crinoids are suspensionfeeders, using their crown, which is covered withsticky pinnules, to capture zooplankton. (Image credit: Pacific Ring of Fire 2004 Expedition. NOAA Office of Ocean Exploration; Dr. Bob Embley, NOAA PMEL, Chief Scientist)