FIGURE 8. A–G in Rissoidae (Mollusca, Gastropoda, Rissooidea) from taphocoenotic assemblages of the Strait of Sicily (Mediterranean Sea) with the description of two new species

FIGURE 8. A–G. Rissoa variabilis (Von Mühlfeldt, 1824). (A, B.) Lectotype of Alvania sulzeriana Risso, 1826 (MNHN-IM2000-35924) height 5 mm; (C.) Original drawing of Alvania sulzeriana Risso, 1826: 145, pl. IX, fig. 124; (D.) Drawing of the reproduction by P. Gény of the illustration by Risso (Arnaud, 1978: 141, pl. 8, fig 62); (E.) original drawings of Rissoa variabilis var. brevis B.D.D., 1884: pl. 31, figs 6-10; (F, G.) Specimens labelled as 'Rissoa variabilis var. brevis' by Monterosato, Saint Raphael, Côtes de Provence (France), height 5.4 mm (MCZR-M-22024/22032), shell (foto by Stefano Bartolini, Firenze) and original labels. H. Pusillina sp., stn COR 2-53, height 1.9 mm, width 1.15 mm (MZUB).