Tricolia retrolineata Nangammbi & Herbert, 2008

Tricolia retrolineata Nangammbi & Herbert, 2008: 14, figs 1–12, 15–17. Nangammbi, 2010: 171, figs 2.61–2.64. Type loc.: Mozambique, Ponta do Ouro (26.850°S: 32.917°E), subtidal reef, ca 20 m; holotype in NMSA (L5938/T2238).

Distribution. Southern Mozambique (Malongane) to northern Pondoland (Mzamba); beach-drift to 26 m, mostly associated with subtidal reefs (living 7–11 m).