I. Martínez-Pita, J. M. Guerra-García, A. I. Sánchez-España, and F. J. García, “Observations on the ontogenetic and intraspecific changes in the radula of Polycera aurantiomarginata García and Bobo, 1984 (Gastropoda Opisthobranchia ) from Southern Spain”, Sci. mar., vol. 70, no. 2, pp. 227–234, Jun. 2006.