Fissurella mutabilis G.B. Sowerby

Herbert, David G., 2015, An annotated catalogue and bibliography of the taxonomy, synonymy and distribution of the Recent Vetigastropoda of South Africa (Mollusca), Zootaxa 4049 (1), pp. 1-98 : 26-27

Fissurella mutabilis G.B. Sowerby (I), 1835

Fissurella mutabilis G.B. Sowerby (I), 1835a : 127. G.B. Sowerby (I), 1835b: 6, figs 67, 70. Krauss, 1848: 65. Martens, 1874: 127, no. 65. Vélain, 1877: 121. Watson, 1886: 33. G.B. Sowerby (III), 1889a: 12. G.B. Sowerby (III), 1892: 47. G.B. Sowerby (III), 1894: 373. Martens, 1904: 50, 55. Bartsch, 1915: 176. Odhner, 1919: 32. Barnard, 1963a: 285, fig. 21a. Kennelly, 1964: 52, pl. 3, fig. 8. Day, 1969: 153. Kensley, 1973: 30, fig. 44. Richards, 1981: 33, pl. 7, fig. 43. Kilburn & Rippey, 1982: 36, pl. 6, fig. 11. Steyn & Lussi, 1998: 12, fig. 18. Branch et al., 2010: 172, fig. 75.3. Marais, 2011: 27. Type loc.: ‘ ad Caput Bonae Spei ’ [Cape of Good Hope]; location of type material unknown (could not be found in NHM, Salvador pers. comm. iii/2015).

Fissurella sagittata Reeve, 1849 in 1849–50: pl. 6, sp. 34. Turton, 1932: 205. Type loc.: Cape of Good Hope; two syntypes in NHM (NHMUK 197559), Salvador pers. comm. (iii/2015).

Fissurella rota Reeve, 1850 in 1849–50: pl. 12, figs 79, 81. G.B. Sowerby (III), 1892: 48. Turton, 1932: 205. Kennelly, 1964: 52, pl. 3, fig. 10. Type loc.: Cape of Good Hope; four syntypes in NHM (NHMUK 20150076), Salvador pers. comm. (iv/ 2015).

Fissurella neglecta (non Deshayes, 1830)—G.B. Sowerby (III), 1889a: 12. G.B. Sowerby (III), 1892: 48.

Fissurella mutabilis var. aurantia G.B. Sowerby (III), 1921: 127. Type loc.: Port Alfred, E. Cape; type material in OXUM (fide Turton 1932: xiv).

Fissurella (Cremides) mutabilis — Dautzenberg, 1929: 544.

Fissurella mutabilis aurantia — Turton, 1932: 205.

Fissurella alboradiata Turton, 1932: 205 , pl. 53, no. 1424. Type loc.: Port Alfred, E. Cape; type material probably in OXUM, but verification required.

Fissurella navicula Turton, 1932: 206 , pl. 53, no. 1428. Type loc.: Port Alfred, E. Cape; type material probably in OXUM, but verification required.

Distribution. Madagascar, southern Mozambique, the entire South African coast and Namibia; intertidal and nearshore reefs to 25 m. Also recorded from Îles S t -Paul and Amsterdam in the southern Indian Ocean ( Vélain 1877).

Notes. This species needs to be examined in detail using molecular techniques to assess whether it might in fact represent a complex of cryptic species.