Trochidae Rafinesque, 1815
Ilanga agulhaensis (Thiele, 1925)
Ilanga bicarinata (A. Adams & Reeve, 1850)
Ilanga biradiatula (Martens, 1902)
Ilanga discus Herbert, 1987
Ilanga furtiva Herbert, 1987
Ilanga gratiosa (Thiele, 1925)
Ilanga impolita Herbert, 1987
Ilanga kilburni Herbert, 1987
Ilanga laevissima (Martens, 1881)
Ilanga lirellata Herbert, 1987
Ilanga maculicincta Herbert, 1987
Ilanga millardi Herbert, 1987
Ilanga platypeza Herbert, 1987
Ilanga polita Herbert, 1987
Ilanga rhyssomphala Herbert, 1987
Ilanga undata (G.B. Sowerby, 1870)
Ilanga whitechurchi (Turton, 1932)
