Parapionosyllis is a genus of polychaete annelids, first described by Pierre Fauvel in 1923.
References
Further reading Nuchal organs of the polychaete Parapionosyllis manca (Syllidae). GA Lewbart, NW Riser; Invertebrate Biology, 1996 Sphaerosyllis and Parapionosyllis (Polychaeta: Syllidae) from Cuba and Florida. G San Martín, Ophelia supplement, 1991 Parapionosyllis macaronesiensis, a new species of Exogoninae (Polychaeta: Syllidae) from the Macaronesian Region. MD Brito, J Núñez, G San Martín, Proceedings of the Biological Society of …, 2000 Parapionosyllis at WoRMS