Polystrata dura Heydrich, 1905: 35, pl. I (type locality: Tami Island, Huon Gulf, Papua New Guinea).—Denizot, 1968: 159–160.— Segonzac, 1983: table 1, pl. I: fig. 2.— Segonzac, 1984: 95, pl. 1: figs. 2–4, table 1.
Cruoriella dura (Heydrich) Weber-van Bosse, 1921: 293–294, pl. VIII: fig. 3.—De Toni, 1924: 585–586.
INDIAN OCEAN DISTRIBUTION: Comoro Islands, Indonesia (Semau), Mauritius, Seychelles, Sri Lanka.