What is another word for Subclass Cirripedia?
Pronunciation: [sˈʌbklas sˌɜːɹa͡ɪpˈiːdi͡ə] (IPA) 
Subclass Cirripedia, commonly known as barnacles, is a group of marine crustaceans that attach themselves to hard surfaces such as rocks, docks, and the hulls of ships. They are filter feeders that use their modified legs to capture plankton. Synonyms for Subclass Cirripedia include barnacle arthropods, sessile crustaceans, and acrothoracica. The word "barnacle" is often used to describe someone who is difficult to remove or shake off, which is fitting as these creatures are notoriously difficult to remove from surfaces once they have attached themselves. Despite their small size, barnacles play an important role in the marine ecosystem as a food source for many marine animals.
