iridescent, [268], [291], [312];
palmate, of Coabangia, [339] n.;
colour, [291];
genital, of Capitella, [331];
of Sternaspis, [336];
special, of Polydora, [261], [267];
of Chaetopterus, [267], [324];
of Myzostoma, [342];
of Oligochaeta, [347], [350], [351], [352];
penial, [362];