original descriptionDüben, M.W. von; Koren, J. (1844). Om Holothuriernas Hudskelet. <em>Konglinga Svenska Vetenskapsakadmiens Handlingar 1844.</em> 211-228, pls. 4-5.[details]
original description(ofDuasmodactyla Ayres, 1852)Ayres, WO., 1852. Descriptions of Holothurians. Proceedings Boston Society of Natural History. 4: 207-208, 214-215, 243-247[details]
basis of recordHansson, H.G. (2001). Echinodermata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i>. 50: pp. 336-351. (look up in IMIS) [details]
additional sourceMadsen, F.J.; Hansen, B. (1994). Echinodermata Holothurioidea. <i>Marine invertebrates of Scandinavia</i>, 9. Scandinavian University Press: Oslo, Norway. ISBN 82-00-03936-6. 143 pp. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality