Morphological observations at the light and scanning electron microscopes of foettingeria actiniarum claparede, 1983 (Ciliophora-apostomatida) commensal of some sea anemones from Rio de Janeiro littoral - Silva Neto, I D; Veiga, V F; Schlenz, E; Rosa, M R S (Microscopia Electronica Y Biologia Celular, 1989)