ThesisGregarines of west coast barnacles: Cephaline Gregarines of barnacles from the north east Pacific OceanHouk, James LGregarines are parasitic protozoa belonging to the sporozoan subclass Telosporidia. They occur most often in invertebrate groups with a metameric level of development. Some, however, have been described from mollusks which do not have a metameric leve . . .