No differences in size and shape of medusae and gametes characters were found among the three species of Millepora, although there is difference in sizes of nematocysts.

• 在水母体方面，三种火珊瑚水母体的形状大小、配子的形状大小，并未发现有显著差异，但水母体身上刺丝胞的大小却发现部份有差异。