Plagiostropha costata is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Distribution This species occurs in the demersal zone of the Indian Ocean off La Réunion at depths between 170 m and 225 m.
References
Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295
External links Holotype at MNHN, Paris