WoRMS taxon details
Janulum de Laubenfels, 1936
131886 (urn:lsid:marinespecies.org:taxname:131886)
accepted
Genus
Isodictya spinispiculum Carter, 1876 accepted as Janulum spinispiculum (Carter, 1876) (type by original designation)
- Species Janulum imago Kelly & Van Soest, 2015
- Species Janulum spinispiculum (Carter, 1876)
- Species Janulum filholi (Topsent, 1890) accepted as Haliclona filholi (Topsent, 1890) (genus transfer)
marine, brackish, fresh, terrestrial
recent + fossil
neuter
Laubenfels, M.W. de. (1936). A Discussion of the Sponge Fauna of the Dry Tortugas in Particular and the West Indies in General, with Material for a Revision of the Families and Orders of the Porifera. <em>Carnegie Institute of Washington Publication.</em> 467 (Tortugas Laboratory Paper 30) 1-225, pls 1-22.
page(s): 79 [details] Available for editors
[request]
page(s): 79 [details] Available for editors
[request]
Taxonomy The Systema Porifera (Hooper, 2002: Raspailiidae, p. 506) assigned this genus to the synonymy of Lithoplocamia (with...
Taxonomy The Systema Porifera (Hooper, 2002: Raspailiidae, p. 506) assigned this genus to the synonymy of Lithoplocamia (with question). The type species, Isodictya spinispiculum, differs considerably from Lithoplocamia in having only a single spicule category of peculiar strongyles, bent in opposite direction at both ends and possessing spines only in the middle parts. It is here judged to be a valid genus and its raspailid nature needs further corroboration. Redmond et al. (2013) reassigned the genus to marine Haplosclerida based on 18S sequence data. Erpenbeck et al. 2023 confirmed the haplosclerid affiliation. The membership of Janulum of family Phloeodictyidae, based on close association with genus Siphonodictyon, is tentative because the type species of Oceanapia is apparently distant to Janulum and Siphonodictyon. [details]
de Voogd, N.J.; Alvarez, B.; Boury-Esnault, N.; Cárdenas, P.; Díaz, M.-C.; Dohrmann, M.; Downey, R.; Goodwin, C.; Hajdu, E.; Hooper, J.N.A.; Kelly, M.; Klautau, M.; Lim, S.C.; Manconi, R.; Morrow, C.; Pinheiro, U.; Pisera, A.B.; Ríos, P.; Rützler, K.; Schönberg, C.; Turner, T.; Vacelet, J.; van Soest, R.W.M.; Xavier, J. (2025). World Porifera Database. Janulum de Laubenfels, 1936. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=131886 on 2025-05-04
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Nomenclature
original description
Laubenfels, M.W. de. (1936). A Discussion of the Sponge Fauna of the Dry Tortugas in Particular and the West Indies in General, with Material for a Revision of the Families and Orders of the Porifera. <em>Carnegie Institute of Washington Publication.</em> 467 (Tortugas Laboratory Paper 30) 1-225, pls 1-22.
page(s): 79 [details] Available for editors [request]
basis of record Boury-Esnault, N.; Pansini, M.; Uriz, M.J. (1994). Spongiaires bathyaux de la mer d'Alboran et du golfe ibéro-marocain. <em>Mémoires du Muséum national d'Histoire naturelle.</em> 160: 1-174., available online at http://bibliotheques.mnhn.fr/EXPLOITATION/infodoc/ged/viewportalpublished.ashx?eid=IFD_FICJOINT_MNHN_MMNHN_S000_1994_T160_N000_1
page(s): 132; note: Janulum is allocated to Haplosclerida [details] Available for editors [request]
basis of record Redmond, N.E.; Morrow, C.C.; Thacker, R.W.; Díaz, M.C.; Boury-Esnault, N.; Cárdenas, P.; Hajdu, E.; Lôbo-Hajdu, G.; Picton, B.E.; Pomponi, S.A.; Kayal, E.; Collins, A.G. (2013). Phylogeny and Systematics of Demospongiae in Light of New Small-Subunit Ribosomal DNA (18S) Sequences. <em>Integrative and Comparative Biology.</em> 53 (3): 388-415., available online at http://icb.oxfordjournals.org/content/early/2013/06/22/icb.ict078
note: the genus Janulum is included in a clade with other Haplosclerida [details] Available for editors [request]
basis of record Morrow, C.; Cárdenas, P. (2015). Proposal for a revised classification of the Demospongiae (Porifera). <em>Frontiers in Zoology.</em> 12: 7., available online at http://www.frontiersinzoology.com/content/12/1/7
page(s): 19; note: Janulum is allocated to Haplosclerida, family Phloeodictyidae [details] Available for editors [request]
basis of record Kelly, M.; Erpenbeck, D.; Morrow, C.; Van Soest, R.W.M. (2015). First record of a living species of the genus <i>Janulum</i> (Class Demospongiae) in the Southern Hemisphere. <em>Zootaxa.</em> 3980 (2): 255-266., available online at https://doi.org/10.11646/zootaxa.3980.2.6
page(s): 258 [details] Available for editors [request]
page(s): 79 [details] Available for editors
[request]basis of record Boury-Esnault, N.; Pansini, M.; Uriz, M.J. (1994). Spongiaires bathyaux de la mer d'Alboran et du golfe ibéro-marocain. <em>Mémoires du Muséum national d'Histoire naturelle.</em> 160: 1-174., available online at http://bibliotheques.mnhn.fr/EXPLOITATION/infodoc/ged/viewportalpublished.ashx?eid=IFD_FICJOINT_MNHN_MMNHN_S000_1994_T160_N000_1
page(s): 132; note: Janulum is allocated to Haplosclerida [details] Available for editors
[request]basis of record Redmond, N.E.; Morrow, C.C.; Thacker, R.W.; Díaz, M.C.; Boury-Esnault, N.; Cárdenas, P.; Hajdu, E.; Lôbo-Hajdu, G.; Picton, B.E.; Pomponi, S.A.; Kayal, E.; Collins, A.G. (2013). Phylogeny and Systematics of Demospongiae in Light of New Small-Subunit Ribosomal DNA (18S) Sequences. <em>Integrative and Comparative Biology.</em> 53 (3): 388-415., available online at http://icb.oxfordjournals.org/content/early/2013/06/22/icb.ict078
note: the genus Janulum is included in a clade with other Haplosclerida [details] Available for editors
[request]basis of record Morrow, C.; Cárdenas, P. (2015). Proposal for a revised classification of the Demospongiae (Porifera). <em>Frontiers in Zoology.</em> 12: 7., available online at http://www.frontiersinzoology.com/content/12/1/7
page(s): 19; note: Janulum is allocated to Haplosclerida, family Phloeodictyidae [details] Available for editors
[request]basis of record Kelly, M.; Erpenbeck, D.; Morrow, C.; Van Soest, R.W.M. (2015). First record of a living species of the genus <i>Janulum</i> (Class Demospongiae) in the Southern Hemisphere. <em>Zootaxa.</em> 3980 (2): 255-266., available online at https://doi.org/10.11646/zootaxa.3980.2.6
page(s): 258 [details] Available for editors
[request]Taxonomy
taxonomy source
Erpenbeck, D.; Van Soest, R. W.; Wörheide, G.; Kelly, M. (2023). Genetic data confirms the enigmatic demosponge <i>Janulum</i> as haplosclerid. <em>Zootaxa.</em> 5254(1): 147-150., available online at https://doi.org/10.11646/zootaxa.5254.1.10 [details] Available for editors [request]
[request]Other
additional source
Hooper, J. N. A. (2002 [2004]). Family Raspailiidae Hentschel, 1923. Pp. 469–510. <em>In: </em>Hooper, J.N.A.; Van Soest, R.W.M. (2002 [2004]). <em>Systema Porifera. A Guide to the Classification of Sponges.</em> (2 volumes). Kluwer Academic/Plenum Publ., New York. 1708+XLVIII. ISBN 978-1-4615-0747-5 (eBook electronic version).
page(s): 506 [details] Available for editors [request]
additional source Van Soest, R.W.M. (2001). Porifera, <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</i>. <em>Collection Patrimoines Naturels.</em> 50: 85-103. (look up in IMIS) [details]
additional source Hooper, J.N.A. (2002). Family Raspailiidae Hentschel, 1923. pp. 469-510. <i>In</i> Hooper, J.N.A. & Van Soest, R.W.M. (eds.) Systema Porifera. Guide to the classification of sponges. Vol. 1. (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow).
page(s): 506 [details] Available for editors [request]
page(s): 506 [details] Available for editors
[request]additional source Van Soest, R.W.M. (2001). Porifera, <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</i>. <em>Collection Patrimoines Naturels.</em> 50: 85-103. (look up in IMIS) [details]
additional source Hooper, J.N.A. (2002). Family Raspailiidae Hentschel, 1923. pp. 469-510. <i>In</i> Hooper, J.N.A. & Van Soest, R.W.M. (eds.) Systema Porifera. Guide to the classification of sponges. Vol. 1. (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow).
page(s): 506 [details] Available for editors
[request]From editor or global species database
Taxonomy The Systema Porifera (Hooper, 2002: Raspailiidae, p. 506) assigned this genus to the synonymy of Lithoplocamia (with question). The type species, Isodictya spinispiculum, differs considerably from Lithoplocamia in having only a single spicule category of peculiar strongyles, bent in opposite direction at both ends and possessing spines only in the middle parts. It is here judged to be a valid genus and its raspailid nature needs further corroboration. Redmond et al. (2013) reassigned the genus to marine Haplosclerida based on 18S sequence data. Erpenbeck et al. 2023 confirmed the haplosclerid affiliation. The membership of Janulum of family Phloeodictyidae, based on close association with genus Siphonodictyon, is tentative because the type species of Oceanapia is apparently distant to Janulum and Siphonodictyon. [details]
