Revision of the genus Fascaplysinopsis, the type species Fascaplysinopsis reticulata (Hentschel, 1912) (Porifera, Dictyoceratida, Thorectidae) and descriptions of two new genera and seven new species Author Ekins, Merrick Queensland Museum, PO Box 3300, South Brisbane 4101, Brisbane, Queensland, Australia & Griffith Institute for Drug Discovery, Griffith University, Brisbane 4111, Queensland, Australia & School of Biological Sciences, University of Queensland, St Lucia, Queensland, 4072 Australia Author Erpenbeck, Dirk 0000-0002-6380-7421 Dept. of Earth and Environmental Sciences Ludwig-Maximilians-Universität M ¸ nchen, Richard-Wagner-Strasse 10, 80333 Munich, Germany & GeoBio-Center, Ludwig-Maximilians-Universität M ¸ nchen, Richard-Wagner-Strasse 10, 80333 Munich, Germany & SNSB-Bayerische Staatssammlung f ¸ r Paläontologie und Geologie, Richard-Wagner-Str. 10, 80333 M ¸ nchen, Germany woerheide @ lmu. de; https: // orcid. org / 0000 - 0002 - 6380 - 7421 woerheide@lmu.de Author Debitus, Cécile 0000-0002-3978-0644 IRD, University of Brest, CNRS, Ifremer, LEMAR, F- 29280 Plouzané, France & IRD, Univ de la Polynésie française, Ifremer, ILM, EIO, F- 98713 Papeete, French Polynesia & cecile. debitus @ ird. fr; https: // orcid. org / 0000 - 0002 - 3978 - 0644 cecile.debitus@ird.fr Author Petek, Sylvain 0000-0001-7920-0467 IRD, University of Brest, CNRS, Ifremer, LEMAR, F- 29280 Plouzané, France & IRD, Univ de la Polynésie française, Ifremer, ILM, EIO, F- 98713 Papeete, French Polynesia & sylvain. petek @ ird. fr; https: // orcid. org / 0000 - 0001 - 7920 - 0467 sylvain.petek@ird.fr Author Mai, Tepoerau IRD, Univ de la Polynésie française, Ifremer, ILM, EIO, F- 98713 Papeete, French Polynesia & Institut Louis Malardé-Papeete, BP 30 - 98713 Papeete, Tahiti, French Polynesia Author Wörheide, Gert 0000-0002-6380-7421 Dept. of Earth and Environmental Sciences Ludwig-Maximilians-Universität M ¸ nchen, Richard-Wagner-Strasse 10, 80333 Munich, Germany & GeoBio-Center, Ludwig-Maximilians-Universität M ¸ nchen, Richard-Wagner-Strasse 10, 80333 Munich, Germany & SNSB-Bayerische Staatssammlung f ¸ r Paläontologie und Geologie, Richard-Wagner-Str. 10, 80333 M ¸ nchen, Germany woerheide @ lmu. de; https: // orcid. org / 0000 - 0002 - 6380 - 7421 woerheide@lmu.de Author Hooper, John N. A. 0000-0003-1722-5954 Queensland Museum, PO Box 3300, South Brisbane 4101, Brisbane, Queensland, Australia & john. hooper @ qm. qld. gov. au; https: // orcid. org / 0000 - 0003 - 1722 - 5954 john.hooper@qm.qld.gov.au text Zootaxa 2023 2023-09-19 5346 3 201 241 http://dx.doi.org/10.11646/zootaxa.5346.3.1 journal article 10.11646/zootaxa.5346.3.1 1175-5326 8390072 C577D701-4F0A-44AB-8CAF-9DF56BEEAA9C Genus Fascaplysinopsis Bergquist, 1980 Definition : Superficially armoured Thorectinae , with a dense collagenous matrix supported by a skeleton of thick cored heavily laminated primary fibres, uncored laminated secondary and tertiary fibres, often with pithing. Diagnosis. Lobate upright digitate fistular and semi burrowing sponges, with a superficial armour and rounded conules. The skeleton is semi-regular but characterised by large diameter detritus cored fasciculating laminated primary fibres, uncored often pithed, laminated secondary fibres and tertiary fibres. The primary fibres can be 2 to 10 times the diameter of the secondary fibres. The tertiary fibres can also be 2 to 10 times smaller than the secondary fibres. The mesohyl is characteristically gelatinous due to the collagenous matrix, but the consistency is firm and compressible. Remarks. The genus Fascaplysinopsis was created by Bergquist (1980) to accommodate irregular branched thorectid sponges with detritus-cored fasciculated primary fibres and uncored secondary fibres. This was meant to differentiate species from Aplysinopsis that have large fasciculated primary fibres, lack a sand cortex, and have a cavernous internal skeleton. When doing this, Bergquist designated Aplysinopsis reticulata Hentschel, 1912 as the type species, which had previously been synonymised with Fasciospongia cavernosa ( Schmidt, 1862 ) by de Laubenfels (1948: 123) , the latter action rejected by Bergquist (1980) . Unfortunately, in defining Fascaplysinopsis , Bergquist relied heavily on recently collected material from Queensland , Australia . Here, we examined the syntype of A. reticulata (SMF 904) and compared it to the specimens from Queensland described by Bergquist (1980) and used in the illustration of the type species of Fascaplysinopsis ( Bergquist 1980 : Fig. 16 A–B ), which is here attributed to a new species from a new genus of Thorectinae , Skolosachlys gen. nov . In addition, the material from New Caledonia and northern Queensland later added by Bergquist (1995: 18) to F. reticulata , is also attributed here to a new species from another new genus of Thorectinae , Rubrafasciculus gen. nov. Thus, Fascaplysinopsis is restricted to a monotypic genus containing only its type species, F. reticulata ( Hentschel, 1912 ) , but having its generic definition amended based on re-examination of the syntype of A. reticulata , here designated as the lectotype . The addition of new species F. palauensis sp. nov. , F. klobos sp. nov. and F. ronquinni sp. nov. brings the total number of species in Fascaplysinopsis to four.