Cirripedia (Barnacles) is an infraclass of typical crustaceans. There are 452 species of barnacles, in 158 genera and 37 families. This infraclass has been around since the guzhangian age. They are sessile animals.
EOL has data for 9 attributes, including:
The environments in which many barnacles species are known to live. Select an environment to see its barnacles species checklist.