Abstract: Candelabrum australe is a rare species known only from southern Australian waters and is reported for the first time from New Zealand. The large cap-shaped hydranth is very active. The cnidome comprises at least nine size-classes of nematocysts in four morphological categories. The hydranth is bisexual, the sexes borne separately on stout branched blastostyles from which lobate actinula larvae are released.
Keywords: Candelabrum australe, southern Australia, New Zealand, active hydranth, cnidome, bisexual, actinula larva