Keywords |
  • Zoology

Cirripedia

Cirripedia is an order of crustaceans that includes barnacles. The young animals look like many other crustaceans, but once they reach a mature age, barnacles are always attached to other substances, either directly or using a stalk. They are enclosed in calcite shells that consist of several parts, two of which can open to let out a bundle of twisted and articulated tentacles, representing the limbs.


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