Latin name: Oxydromus vittatus
Oxydromus vittatus is a species with a rather unique behavior among polychaetes. It does not live hidden among shells and gravel or digs itself down in the sediment. Instead it lives fully visible on muddy bottoms. An explanation to this could be that it is tastes bad or is poisonous for other predators. A way to show this is to have distinct colours. It is possible that the green-blue-white ribbon-like pattern is a warning signal for other animals to show that is it poisonous. The brown colour on the animal, and even how distinct the green-blue-white pattern is varies between individuals, but it is still not different species in this case, but a variation within the species.