pedicellaria
叉棘
Ped·i·cel·la·ri·a n.; pl. Pedicellariæ Zool. A peculiar forcepslike organ which occurs in large numbers upon starfishes and echini. Those of starfishes have two movable jaws, or blades, and are usually nearly, or quite, sessile; those of echini usually have three jaws and a pedicel. See Illustration in Appendix.
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