Y. DEL-PILAR-RUSO and G. SAN MARTIN, “Description of a new species of Sphaerosyllis Claparède, 1863 (Polychaeta: Syllidae: Exogoninae) from the Alicante coast (W Mediterranean) and first reports of two other species of Syllidae for the Mediterranean Sea and the Iberian Peninsula”, Mediterr. Mar. Sci., vol. 13, no. 2, pp. 187–197, Sep. 2012.