Serrano, Alberto, Guillermo San Martín, and Eduardo López. 2006. “Ecology of Syllidae (Annelida: Polychaeta) from Shallow Rocky Environments in the Cantabrian Sea (South Bay of Biscay)”. Scientia Marina 70 (S3):225-35. https://doi.org/10.3989/scimar.2006.70s3225.