Analysis of information sources in references of the Wikipedia article "Stolon" in English language version.
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This appendage will detach from the main body and swim away, carrying gonads that will merge with those from other disembodied rear ends and give rise to a new generation. Wait, what in the science fiction B-movie alien star system is this thing?
This trainworm (Myrianida pinnigera), which is 35 mm from head to tail, lives on the sea floor. Its front end, the trainworm's engine, is followed by a row of carriages called 'stolons' that increase in size towards the worm's tail end. The carriages are the worm's swimming sexual organs. When the trainworm is mature, the last carriage in the train lets go and detaches. It swims up the water column to reproduce. The carriages, unlike the engine, all lack a gut and are full of either sperm or eggs. In the water column the well-developed sensory organs seek out another stolon to mate with. After mating the male stolons die. The females survive a short time to shelter the embryos, which are carried in their bellies. Meanwhile, the trainworm on the sea floor continues to produce stolon carriages.
