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CaRMS name detailsTrichostemma hemisphaericum Sars, 1872
157420 (urn:lsid:marinespecies.org:taxname:157420)
unaccepted (genus transfer)
Species
Trichostemma Sars, 1869 accepted as Polymastia Bowerbank, 1862
marine,
Sars, G.O. (1872). On some remarkable forms of animal life from the great deeps off the Norwegian coast. Part 1, partly from posthumous manuscripts of the late Professor Dr. Michael Sars. University Program for the 1st half-year 1869. <em>Brøgger & Christie, Christiania viii.</em> 82: 1-6., available online at http://biodiversitylibrary.org/page/11677777
page(s): 62-65 [details] 
Type locality contained in Northern Norway and Finnmark
type locality contained in Northern Norway and Finnmark [details]
Distribution Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the...
Distribution Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway), Laurentian channel (bathyal zone) (=Honguedo Strait), and the Laurentian Channel (bathyal zone) to the northeast of Anticosti Island (= Jacques Cartier Strait) [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 hemisphaericum Sars, 1872. Accessed through: Nozères, C., Kennedy, M.K. (Eds.) (2025) Canadian Register of Marine Species at: https://www.marinespecies.org/CaRMS/aphia.php?p=taxdetails&id=157420 on 2026-03-29
Nozères, C., Kennedy, M.K. (Eds.) (2026). Canadian Register of Marine Species. Trichostemma hemisphaericum Sars, 1872. Accessed at: https://marinespecies.org/carms/aphia.php?p=taxdetails&id=157420 on 2026-03-29
Date action by
original description
Sars, G.O. (1872). On some remarkable forms of animal life from the great deeps off the Norwegian coast. Part 1, partly from posthumous manuscripts of the late Professor Dr. Michael Sars. University Program for the 1st half-year 1869. <em>Brøgger & Christie, Christiania viii.</em> 82: 1-6., available online at http://biodiversitylibrary.org/page/11677777
page(s): 62-65 [details] context source (Deepsea) Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [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] Available for editors  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 additional source Rezvoi, P. (1931). Sponges collected by the expedition of the Institute for the scientific exploration of the North to Novaya Zemlya in 1925. <em>Annuaire du Musée Zoologique de l'Académie des Sciences de l'URSS.</em> 32: 503-521. (In Russian, with English Summary). page(s): 509 [details] additional source Brunel, P., L. Bosse & G. Lamarche. (1998). Catalogue of the marine invertebrates of the estuary and Gulf of St. Lawrence. <em>Canadian Special Publication of Fisheries and Aquatic Sciences, 126.</em> 405 pp. (look up in IMIS) [details] Available for editors additional source Hentschel, E. (1929). Die Kiesel- und Hornschwämme des Nördlichen Eismeers. Pp. 857-1042, pls XII-XIV. <em>In: Römer, F., Schaudinn, F., Brauer, A. & Arndt, W. (Eds), Fauna Arctica. Eine Zusammenstellung der arktischen Tierformen mit besonderer Berücksichtigung des Spitzbergen-Gebietes auf Grund der Ergebnisse der Deutschen Expedition in das Nördliche Eismeer im Jahre 1898.</em> 5 (4) (G.Fischer, Jena). page(s): 869 [details] Available for editors additional source Rezvoi, P. (1928). Contribution to the fauna of Porifera in the Barents Sea. <em>Transactions of the Institute for the scientific exploration of the North.</em> 37: 67-95 (in Russian with English summary). page(s): 78 [details] additional source Topsent, E. (1913). Spongiaires provenant des campagnes scientifiques de la ‘Princesse Alice' dans les Mers du Nord (1898-1899 - 1906-1907). <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I de Monaco.</em> 45: 1-67, pls I-V. page(s): 20-21 [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
Distribution Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway), Laurentian channel (bathyal zone) (=Honguedo Strait), and the Laurentian Channel (bathyal zone) to the northeast of Anticosti Island (= Jacques Cartier Strait) [details]
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