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Porifera name detailsTrichostemma Sars, 1869
132056 (urn:lsid:marinespecies.org:taxname:132056)
unaccepted > junior objective synonym (nomen nudum)
Genus
Trichostemma hemisphaericum Sars, 1872 accepted as Polymastia hemisphaerica (Sars, 1872) (type by monotypy)
marine,
recent only
neuter
Sars, G.O. (1869). Fortsatte bemaerkninger over det dyriske livs Udredning i havets dybder - On the Deep-sea Fauna of the Norwegian coast. Forhandlinger i Videnskabsselskabet i Kristiana 1868: 246-275. , available online at https://www.biodiversitylibrary.org/page/43782509 [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. Trichostemma Sars, 1869. Accessed at: https://www.marinespecies.org/porifera/porifera.php?p=taxdetails&id=132056 on 2026-05-04
Date action by
original description
Sars, G.O. (1869). Fortsatte bemaerkninger over det dyriske livs Udredning i havets dybder - On the Deep-sea Fauna of the Norwegian coast. Forhandlinger i Videnskabsselskabet i Kristiana 1868: 246-275. , available online at https://www.biodiversitylibrary.org/page/43782509 [details]
basis of record Boury-Esnault, N. (2002). Family Polymastiidae Gray, 1867. Pp. 201-219. <i>In</i>: Hooper, J.N.A. & Van Soest, R.W.M. (eds) <i>Systema Porifera - A guide to the classification of sponges</i>. (2 volumes) Kluwer Academic/ Plenum Publishers: New York, 1708 + xvliii. ISBN 0-306-47260-0 (printed version)., available online at https://doi.org/10.1007/978-1-4615-0747-5_22 [details]  basis of record Boury-Esnault, N. (2002 [2004]). Family Polymastiidae Gray, 1867. Pp. 201-219. <i>In</i>: Hooper, J.N.A. & Van Soest, R.W.M. (eds) <i>Systema Porifera - A guide to the classification of sponges</i>. (2 volumes) Kluwer Academic/ Plenum Publishers: New York, 1708 + xvliii. ISBN 978-1-4615-0747-5. [details] Available for editors  [request]basis of record Ridley, S.O.; Dendy, A. (1887). Report on the Monaxonida collected by H.M.S. 'Challenger' during the years 1873-76. <em>Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology.</em> 20 (part 59): i-lxviii, 1-275, pl. 1-51, 1 map., available online at http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-59/README.htm page(s): 216-218 [details]  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]  Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Authority The first time the name was proposed was by M. Sars (1869), but this is a nomen nudum and unavailable because no description or illustration was provided. M. Sars died in 1869, and his work was continued by his son, G.O. Sars and the name was used again by him, this time with a proper description and illustration of both genus and species. This takes the authorship and date of the son according to the rules of the ICZN. [details]
Unreviewed
Image from typetaxon 
Image from typetaxon 
Image from typetaxon |