Homalopoma rotundatum

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 : 78

Homalopoma rotundatum (G.B. Sowerby (III), 1892)

( Figure 9 D–F)

Turbo (Collonia) minutus (non Michaud, 1828) G.B. Sowerby (III), 1889b: 152, pl. 3, fig. 9. G.B. Sowerby (III), 1892: 42, pl. 2, fig. 54. Type loc.: South Africa, but not originally further specified, later given as Port Elizabeth (G.B. Sowerby (III) 1892); two syntypes in NHM (NHMUK 1899.4.14.3605–3606), Salvador pers. comm. (iii/2015).

Cyclostrema rotundata G.B. Sowerby (III), 1892: 45, pl. 2, fig. 47. Turton, 1932: 199, pl. 51, no. 1381. Tomlin, 1923: 50 [= minutus G.B. Sowerby (III), 1889]. Type loc.: Port Elizabeth; two syntypes in NHM (NHMUK 1899.4.14.3605–06).

Cyclostrema inconspicua Turton, 1932: 199 , pl. 51, no. 1382.

Leptothyra rotundata — Barnard, 1963a: 230, figs 9 a–d. Kensley, 1973: 46, fig. 123.

Homalopoma rotundatum — Kilburn & Rippey, 1982: 48.

Homalopoma rotumdatum [sic]— Marais, 2011: 64.

Distribution. KwaZulu-Natal south coast (Port Edward area) to west coast of Cape Peninsula; intertidal.

Figures

FIGURE 9. A – C, Homalopoma africanum (Bartsch, 1915), Aliwal Shoal, KwaZulu-Natal, ± 20 m, diameter 1.8 mm (NMSA S 7905). D – F, Homalopoma rotundatum (G. B. Sowerby (III), 1892), Still Bay, W. Cape, diameter 2.3 mm (NMSA A 3071). G, H, Conjectura agulhasensis (Thiele, 1925), SSE of Knysna, W. Cape, 101 m, diameter 2.2 mm (NMSA V 1792). I, Crosseola foveolata (Barnard, 1963), SSE of Knysna, W. Cape, 101 m, diameter 2.3 mm (NMSA V 1793). J, K, Acremodontina aff. carinata (Powell, 1940), off Mbashe River, E. Cape, 200 – 220 m, length 2.13 mm, scale bar for protoconch = 100 Μm (NMSA V 908). [Images not to scale.]