. "Cerithium (Thericium) mysterium (Hedley, 1917)" . "Cerithium mysterium (Hedley, 1917)" . . . "Cerithium tomlini (Hedley, 1914)" . "Cerithium filosum (G.B. Sowerby II, 1865)" . . . "Cerithium tenuifilosum (G.B. Sowerby II, 1866)" . "Cerithium novaehiberniae (A. Adams in G.B. Sowerby II, 1855)" . . . "Cerithium tenellum" . . . . "Cerithium tenellum" . . "Cerithium (Clypeomorus) tenellum (G.B. Sowerby II, 1855)" . .