An annotated catalogue and bibliography of the taxonomy, synonymy and distribution of the Recent Vetigastropoda of South Africa (Mollusca) Author Herbert, David G. text Zootaxa 2015 4049 1 1 98 journal article http://dx.doi.org/10.11646/zootaxa.4049.1.1 13ce6790-fb60-4602-b68b-6d06c9f011e9 1175-5326 245367 A8BD434E-9A7C-40A5-BDDE-D45356517FF3 Tricolia adusta Nangammbi & Herbert, 2006 Tricolia adusta Nangammbi & Herbert, 2006 : 12 , figs 1–16 . Nangammbi, 2010 : 90 , figs 2.16–2.19. Nangammbi et al . in press. Type loc.: Cracker Reef, Aliwal Shoal, KwaZulu-Natal; holotype in NMSA (E 7143 /T 2013 ). Distribution. Northern Zululand (off Kosi Bay) to southern Transkei (off Qora River); beach-drift to 140 m (living shallow subtidal to 70 m ).