Ekins M. auteur aut IRD Erpenbeck D. auteur aut IRD Debitus Cécile auteur aut IRD Petek Sylvain auteur aut IRD Mai T. auteur aut IRD Wörheide G. auteur aut IRD Hooper J. N. A. auteur aut IRD text journalArticle eng The present study examines the taxonomy of sponge specimens with unique chemistry collectively known as Fascaplysinopsis reticulata (Hentschel, 1912). Examination of Hentschel's original species upon which the genus Fascaplysinopsis Bergquist, 1980 was based in conjunction with a comparison with recent Indo-west Pacific collections, using morphological and molecular analyses (ITS and 28SrDNA), revealed extensive variation. Fascaplysinopsis reticulata was found to be a species complex comprising the genus Fascaplysinopsis , as well as two new genera: Skolosachlys gen. nov. and Rubrafasciculus gen. nov. The new species of Fascaplysinopsis described are F. palauensis sp. nov., F. klobos sp. nov. and F. ronquinni sp. nov. The new species of Skolosachlys gen. nov. described herein are: S. enlutea sp. nov. and S. nidus sp. nov. The new species described of Rubrafasciculus gen. nov. includes: R. cerasus sp. nov. and R. fijiensis sp. nov.. specialized Thorectinae taxonomy systematics new species new genera Indo-west Pacific Australia fascaplysin horny sponges AUSTRALIE OCEAN INDIEN PACIFIQUE 034 5346 3 201-241 2023 1175-5326 https://www.documentation.ird.fr/hor/PAR00026652 10.11646/zootaxa.5346.3.1 1175-5326 https://www.documentation.ird.fr/hor/PAR00026652 IRD - Base Horizon / Pleins textes 2023-11-10 2025-02-24 PAR00026652 fre