Diancta martensi (H. Adams, 1866). 5 Possible syntype NHMUK 1867.3.22.4, err.: “Australia, Lord Howe”, H = 3.2 mm 6 UMMZ 88697 Fiji, Viti Levu, mouth of cave near Suva Bay, coll. Bryant Walker ex Ponsonby 7 UMMZ 87919 Tonga, Tongatabu, coll. Bryant Walker ex Ponsonby 8 Fiji, Viti Levu, Qauia village, 20–50 m, H = 2.62 mm 9 last whorl opened to show internal lamellae (enlarged, not to scale). 10 operculum 10a inner surface 10b outer surface. All figures ×10, Figure 10 ×40 magnification.