A review of the hexacreusia species complex: eastern pacific coral barnacles (cirripedia, balanomorpha)

Abstract

Hexacreusia Zullo, 1961, previously assigned to the Pyrgomatidae is herein formally reassigned to the Archaeobalanidae. Re-examination of certain specimens of Hexacreusia from San Esteban Island within the Gulf of California, Mexico has revealed that in addition to H. durhami Zullo, 1961 there is a second species present, for which we propose H. puritanae sp.nov. The Galapagan species, H. straeleni Zullo Beach, 1973, differs in general form, manner of growth and type of host from the mainland forms of Hexacreusia and is assigned to a new genus, Zulloana