Planulae

Fertilization is external, producing free-living planula larva.

体外受，能产生自由活动的浮浪幼虫。

In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula.

在海蜇成体或水母体阶段，过将子和放到水中形成浮浪幼体而进行有性繁殖。