Volume 29 (1993) - Fascicolo 5-8
- Mikkelsen P.M., 1993. Monophily versus the Cephalapsidea with an analysis of traditional cephalapsid characters. Bollettino Malacologico, 29 (5-8): 115-138
- Gascoigne T., 1993. Stylets, styles, and other cuticular extensions of the male duct in the order Sacoglossa. Bollettino Malacologico, 29 (5-8): 139-146
- Jensen K.R., 1993. Evolution of buccal apparatus and diet radiation in the Sacoglossa. Bollettino Malacologico, 29 (5-8): 147-172
- Cattaneo-Vietti R., Angelini S., Bavestrello G., 1993. Skin and gut spicules in Discodoris atromaculata (Bergh, 1880) (Nudibranchia). Bollettino Malacologico, 29 (5-8): 173-180
- Wagele H., 1993. New results on the systematics of Nudibranchia from the southern polar seas. Bollettino Malacologico, 29 (5-8): 181-190
- Koutsoubas D. & Koukoubas A., 1993. An account of our knowledge on the Opisthobranch mollusc fauna of the Aegean Sea. Bollettino Malacologico, 29 (5-8): 191-200
- Villani G. & Martnez E., 1993. Some observations on the Opisthobranch fauna from the Fusaro lake, a brackish-water lagoon near Naples. Bollettino Malacologico, 29 (5-8): 201-209