J.  Vacelet, Borchiellini, C., Perez, T., Bultel-Poncé, V., Brouard, J. P., and Guyot, M., ?Morphological, chemical and biochemical characterization of a new species of sponge without skeleton (Porifera, Demospongiae) from the Mediterranean Sea?, Zoosystema, vol. 22, no. 2, pp. 313-326, 2000.