Diancta trilamellata sp. n. 44 Holotype MNHN IM-2000-27433, Viti Levu, Waivisa karst, 50–80 m, H = 2.37 mm 45 paratype, last whorl opened to show internal lamellae (enlarged, not to scale) 46 operculum, 46a inner surface, 46b outer surface). Figure 44 ×10, Figure 46 ×40 magnification.