New records of old species: some pelagic polychaetes along the Italian coast

Holoplanktonic polychaetes constitute an exception within this taxon, which as adults colonize all the whole variety of brackish water and marine habitats. Nevertheless, they form a distinctive group in marine zooplankton and play an important role in the pelagic trophic nets. Pelagic worms are little studied, especially in the Mediterranean Sea, while information regarding the distribution of the families Typhloscolecidae and Iospilidae along...