The planula then attaches to a hermit crab shell and subsequently undergoes metamorphosis to turn into a single polyp with extending stolons.
32.
Eggs and sperm are ejected through the mouth and after fertilisation, develop into planula larvae which form part of the plankton.
33.
After fertilisation, the planula larvae form part of the plankton and eventually settle on the seabed and undergo metamorphosis into polyps.
34.
Sexually mature stauromedusae free-spawn eggs or sperm, which fertilize in the sea and form a creeping, unciliated planula larva.
35.
Like most other hydrozoans, " T . dohrnii " begin their life as free-swimming tiny larvae known as planula.
36.
The eggs have yolks, and the embryos are brooded in the coelenteron until they are liberated into the water column as planula larvae.
37.
In moon jellies, the eggs lodge in pits on the oral arms, which form a temporary brood chamber for the developing planula larvae.
38.
The resulting zygote becomes a free swimming planula larva which eventually settles onto a suitable substrate where it undergoes metamorphosis to become a small polyp.
39.
Despite the close relationship between the two groups, the larva does not resemble that of the acorn worms; they are " planula-like ".
40.
Up to fifty planula larvae are released from an adult, each one being approximately long and half that width, with zooxanthellae already present in their tissues.
