Núñez, Jorge; Martínez, Alejandro; Brito, M. Carmen (2009). "A new species of Sphaerosyllis Claparède, 1863 (Polychaeta: Syllidae: Exogoninae) from the Atlantida Tunnel, Lanzarote, Canary Islands". Marine Biodiversity. 39 (3): 209–214. doi:10.1007/s12526-009-0026-3. ISSN1867-1616.
Núñez, Jorge; Martínez, Alejandro; Brito, M. Carmen (2009). "A new species of Sphaerosyllis Claparède, 1863 (Polychaeta: Syllidae: Exogoninae) from the Atlantida Tunnel, Lanzarote, Canary Islands". Marine Biodiversity. 39 (3): 209–214. doi:10.1007/s12526-009-0026-3. ISSN1867-1616.