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nounmarine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfacestype of:
Definition that contains cirriped
- subclass entomostraca in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use
- entomostraca in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use