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 Ilanga bicarinata sphinx Herbert, 1987 Ilanga undata sphinx Herbert, 1987 c : 328 , figs 85, 88–93 . Type loc.: off Whale Rock, Transkei ( 31 °58.8ʹS: 29 °16.6ʹE), 90 m ; holotype in NMSA (C 9946 /T 3504 ). Distribution. Central Zululand (off Neill Peak) to E. Cape (off East London); 70–500 m (living 90–400 m ).