Reproduction
Platynereis dumerilii palps.
As several polychaetes P. dumerilii are dioecious, (although close species as P. magellensis is hermaphroditic).
Gametes are proliferated from a particular germinal epithelium, typically attached to the septa of the anterior segments. Gametogenesis in P. dumerilii lasts 3-5 months in captivity and around 7 month in wild populations, culminating in a single mass broadcast spawning event after epitokous metamorphosis.
