Medusafissurella dubia (Reeve, 1849) Fissurella dubia Reeve, 1849 in 1849 – 50: pl. 6, sp. 35. Paes da Franca, 1960 b: 54. Type loc.: Port Natal [Durban]; holotype in NHM (NHMUK 198495), figured by McLean & Kilburn (1986: fig. 9). Fissurella dubia —G.B. Sowerby (III), 1892: 48. Fissurellidea genevievae Dautzenberg, 1929: 546, pl. 1, figs 3–7. Type loc.: Madagascar, several localities listed; location of type material unknown (not in Dautzenberg collection at RBINS). Amblychilepas dubia — Kilburn & Rippey, 1982: 35, pl. 6, fig. 2. Medusafissurella dubia — McLean & Kilburn, 1986: 3, figs 1, 8–10, 15 (further references). Bosch et al., 1995: 31, fig. 19. Steyn & Lussi, 1998: 12, fig. 20. Distribution. Western Indian Ocean, fr...