original description(ofDrillia cygnea Melvill & Standen, 1897)Melvill, J. C. & Standen, R. (1897). Notes on a collection of shells from Lifu and Uvea, Loyalty Islands, formed by the Rev. James and Mrs. Hadfield, with list of species. Part III. <em>Journal of Conchology.</em> 8: 396-421., available online athttps://www.biodiversitylibrary.org/page/31980975 page(s): 397, pl. 11, fig. 82. [details]
Present Inaccurate Introduced: alien Containing type locality