Parviturbo alfredensis ( Bartsch, 1915 )

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 : 42-43

Parviturbo alfredensis ( Bartsch, 1915) —new combination

( Figure 3 L)

Leptothyra alfredensis Bartsch, 1915: 149 , pl. 32, figs 1–3. Turton, 1932: 178, no. 1255. Barnard, 1963a: 227. Kensley, 1974: 46, fig. 118. Type loc.: Port Alfred, E. Cape; holotype in USNM (250500).

Cyclostrema alfredensis Bartsch, 1915: 169 , pl. 35, figs 6–8. Type loc.: Port Alfred, E. Cape; holotype in USNM (250501 a). Syn. nov.

Parviturboides alfredensis — Kilburn, 1977: 181.

Distribution. East London to Cape Agulhas; known only from beach-drift (no data for living specimens). Notes. Similar to, but considerably larger than P. agulhasensis (diameter 3.3–4.0 mm vs. 1.9 mm), and with more distinct axial sculpture in the cord intervals.

Figures

FIGURE 3. A, B, Cocculinella minutissima (E. A. Smith, 1904), off Cape St. Lucia, KwaZulu-Natal, 160 – 180 m, length 3.8 mm (NMSA E 3091). C, D, Lepetella sp., NE of Gipsy Hill, KwaZulu-Natal, 63 – 70 m, length 4.1 mm (NMSA S 3478). E – G, Emarginula decorata Deshayes, 1863, off Boteler Point, KwaZulu-Natal, 53 m, length 8.0 mm (NMSA S 6867). H, Calliotropis acherontis B. A. Marshall, 1979, off Shixini Point, E. Cape, 500 m, height 4.8 mm (NMSA C 7073). I – J, Visayaseguenzia compsa (Melvill, 1904), off Gobey's Point, KwaZulu-Natal, 55 – 100 m, diameter 2.5 mm (NMSA E 1427). K, Parviturbo agulhasensis (Thiele, 1925), south of Quoin Point, W. Cape, 80 m, diameter 1.9 mm (syntype, ZMB). L, Parviturbo alfredensis (Bartsch, 1915), Cannon Rocks, Algoa Bay, E. Cape, height 3.3 mm (NMSA E 1538). [Images not to scale.]