New sea cucumber species from the seamounts on the Southwest Indian Ocean Ridge (Echinodermata: Holothuroidea: Aspidochirotida, Elasipodida, Dendrochirotida) Author O’Loughlin, P. Mark Author Mackenzie, Melanie Author VandenSpiegel, Didier text Memoirs of Museum Victoria 2013 2013-12-10 70 37 50 https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-70-2013/pages-37-50/ journal article 10.24199/j.mmv.2013.70.04 1447-2554 12208349 DECF956F-C474-4C8D-82AF-48FD0EC0BB4A Psolus Oken, 1815 Diagnosis (from Mackenzie and Whitfield, 2011 ). Species of Psolidae with large imbricating or contiguous dorsal and lateral scales; ventrolateral scales at margin clearly demarcated from thin sole that lacks conspicuous scales; tube feet absent dorsally and laterally, except sometimes present orally and anally; 10 dendritic tentacles, eight large and two small ventrally. Remarks . Oken, 1815 was rejected for systematic validity by ICZN (1956, opinion 417).Paulay and O’Loughlin have submitted an application to ICZN for Oken, 1815 validity as author of Psolus (case 3598). We use the authorship here provisionally.