The crinoids are stalked echinoderms with a cup-like body with a mouth on top of the body surrounded by five or more branching arms, generally feather-like in appearance. They are passive suspension feeders, which means they rely on the ambient movement of water to bring them food, and they produce no current of their own.
Echinodermata (echinoderms), class: Crinoidea (featherstars & sealilies)
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