A hermaphrodite who can reproduce both sexually and asexually. The gonads generally produce oocytes, but in some, no spermatogenic material is present, so they function as ovaries, while others produce sperm and function as testes. The eggs have large yolk sacs so the larvae are probably lechithotrophic, living on the nutrients already present in the eggs. Reproducing sexually allows the species to disperse to new locations in a way it could not do if it relied entirely on asexual reproduction.

After fission, the gonads regress and individuals that previously had mature female gonads become masculinized, developing male-type gonads. Many larger individuals prvide evidence that they have divided by fission on several different occasions.