Distribution & Ecology: Marquesas (Eiao, Fatu Hiva, Hiva Oa, Motu One-Hatutaa, Nuku Hiva, Ua Huka, Ua Pou (18-150 m).

Regional Records: Dardanus dearmatus Henderson, 1888. - Unpublished observation. Det. D.L. Rahayu, April 2007 from specimens in MNHN collection. Coll. MUSORSTOM 9, stations: CP1155, Eiao, 80 m; CP1156, Eiao, 80 m; CP1157, Eiao, 100 m; CP1160, Eiao, 49-55 m; CP1170, Nuku Hiva, 104-109 m; CP1177, Nuku Hiva, 108-112 m; CP1187, Nuku Hiva, 25-30 m; CP1188, Nuku Hiva, 35-55 m; CP1212, Hiva Oa, 50-80 m; CP1215, Hiva Oa, 49-62 m; CP1226, Hiva Oa, 38-77 m; CP1227, Hiva Oa, 34-85 m; CP1228, Hiva Oa, 107-108 m; CP1237, Hiva Oa, 95- ?305 m; CP1239, Hiva Oa, 89-95 m; CP1264, Ua Pou 53-57 m; CP1264, Ua Pou, 53-57 m; DR1200, Hiva Oa, 96-100 m ; DR1297, Ua Huka, 90-150 m; DR1304, Nuku Hiva, 50-58 m; DW1143, Ua Pou, 18-55 m; DW1161, Nuku Hiva, 30-37 m; DW1170, Nuku Hiva, 104-109 m; DW1185, Nuku Hiva, 31-33 m; DW1185, Nuku Hiva, 31-33 m; DW1186, Nuku Hiva, 42-45 m; DW1208, Hiva Oa, 117 m; DW1210, Hiva Oa, 98-100 m; DW1211, Hiva Oa, 50 m; DW1213, Hiva Oa, 18-20 m; DW1217, Hiva Oa, 85-87 m; DW1241, Fatu Hiva, 85-130 m; DW1242, Fatu Hiva, 119-122 m; DW1260, Ua Pou, 49-100 m; DW1283, Motu One, Hatutaa, 55-56 m; Ua Huka, Malacologist team, littoral and shallow water, stn. 24 bis, Stn. 34; REMARQ, DR7, DR12, Nuku Hiva , 08°46.827' S, 140°03.636' W, 65-78 m. - AAMP, Marquesas, 2012, Leg 2, St. 18, Ua Huka, dive at night 10-20 m.

Depth distribution: 18 - 150 m