Also a term of abuse used by Captain Haddock by VaccaD

Question 1

Members of the infraclass Cirripedia, WHAT SESSILE CRUSTACEANS are the most famous subject of Haddock's cursing? (With over 1000 known species Haddock is probably correct that there are billions of them, and some are blue, but there's less information about how many are "bilious" or "blistering".)