Emarginula costulata Deshayes, 1863 —new record Emarginula costulata Deshayes, 1863: 47, pl. 7[34], figs 3–5. Thiele, 1915 in 1912–1919: 79, pl. 9, fig. 22 (further references). Viader, 1937: 57. Drivas & Jay, 1985: 5, fig. 9. Drivas & Jay, 1988: 32, pl. 1, fig. 4 (not 3 as indicated). Herbert, 1987b: 11, figs 39–42. Singer, 1998: 5. Type loc.: Réunion; lectotype in MNHN, designated by Herbert (1987b: 11). Emarginula tenuicostata (non G.B. Sowerby (II), 1863)— Kilburn, 1978: 442, pl. 4c, d, g. Herbert & Kilburn, 1986: 11, fig. 37. Distribution. South-western Indian Ocean; Mauritius, Réunion and Mozambique, south to northern Zululand (off Dog Point); shallow subtidal to 100 m (living 5–70 m). Notes. Melvill & Standen (1898) recorded this species from the Madras area, India, with ‘some slight doubt’ regarding the identity of the material.

Published as part of Herbert, David G., 2015, An annotated catalogue and bibliography of the taxonomy, synonymy and distribution of the Recent Vetigastropoda of South Africa (Mollusca), pp. 1-98 in Zootaxa 4049 (1) on page 21, DOI: 10.11646/zootaxa.4049.1.1, http://zenodo.org/record/245367