Deep-Sea taxon details
Ilyarachna longicornis (G. O. Sars, 1864)
118677 (urn:lsid:marinespecies.org:taxname:118677)
accepted
Species
Ilyarachna derjugini Gurjanova, 1946 · unaccepted (junior synonym)
Mesostenus longicornis G. O. Sars, 1864 · unaccepted (basionym)
marine, brackish, fresh, terrestrial
recent only
(of Mesostenus longicornis G. O. Sars, 1864) Sars, G.O. (1864). Om en anomal Gruppe af Isopoder. <em>Forhandlinger i Videnskabs-selskabet i Christiania.</em> 1863: 205-221., available online at https://www.biodiversitylibrary.org/page/44339337 [details] 
Note Christiana Fjord
From editor or global species database
type locality Christiana Fjord [details]
Depth range 8-5223
Distribution Saguenay Fjord; lower St. Lawrence estuary
Depth range 8-5223 [details]
Distribution Saguenay Fjord; lower St. Lawrence estuary
Distribution Saguenay Fjord; lower St. Lawrence estuary [details]
Boyko, C.B.; Campos-Filho, I.S.; Hadfield, K.A.; Hughes, T.; Merrin, K.L.; Ota, Y.; Poore, G.C.B. (Eds) (2025). World Marine, Freshwater and Terrestrial Isopod Crustaceans database. Ilyarachna longicornis (G. O. Sars, 1864). Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://www.marinespecies.org/Deepsea/aphia.php?p=taxdetails&id=118677 on 2026-02-20
Glover, A.G.; Higgs, N.; Horton, T. (2026). World Register of Deep-Sea species (WoRDSS). Ilyarachna longicornis (G. O. Sars, 1864). Accessed at: https://www.marinespecies.org/Deepsea/aphia.php?p=taxdetails&id=118677 on 2026-02-20
Date
action
by
original description
(of Ilyarachna derjugini Gurjanova, 1946) Gurjanova, E. (1946). New species of Isopoda and Amphipoda from the Arctic Ocean. <em>Compendium of results, Drifting Expedition, Icebreaker "Cedov", 1937-1940, Moscow.</em> 3: 272-297. [details] Available for editors 
original description (of Mesostenus longicornis G. O. Sars, 1864) Sars, G.O. (1864). Om en anomal Gruppe af Isopoder. <em>Forhandlinger i Videnskabs-selskabet i Christiania.</em> 1863: 205-221., available online at https://www.biodiversitylibrary.org/page/44339337 [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 van der Land, J. (2001). Isopoda - excluding Epicaridea, <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. Collection Patrimoines Naturels,</i> 50: pp. 315-321 (look up in IMIS) [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 Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details]
additional source Schotte, M., B.F. Kensley & S. Shilling. (1995 onwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA - no longer online. [website archived on 2018-01-25]. [details]
source of synonymy Kussakin, O. G. (2003). Marine and brackish-water Crustacea (Isopoda) of cold and temperate waters of the Northern Hemisphere. 3. Suborder Asellota 2. Family Munnopsidae. <em>Opredeliteli po Faune SSR, Akademiya Nauk, SSSR.</em> 171: 1-380 [in Russian]. [details] Available for editors
original description (of Mesostenus longicornis G. O. Sars, 1864) Sars, G.O. (1864). Om en anomal Gruppe af Isopoder. <em>Forhandlinger i Videnskabs-selskabet i Christiania.</em> 1863: 205-221., available online at https://www.biodiversitylibrary.org/page/44339337 [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 van der Land, J. (2001). Isopoda - excluding Epicaridea, <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. Collection Patrimoines Naturels,</i> 50: pp. 315-321 (look up in IMIS) [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 Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details]
additional source Schotte, M., B.F. Kensley & S. Shilling. (1995 onwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA - no longer online. [website archived on 2018-01-25]. [details]
source of synonymy Kussakin, O. G. (2003). Marine and brackish-water Crustacea (Isopoda) of cold and temperate waters of the Northern Hemisphere. 3. Suborder Asellota 2. Family Munnopsidae. <em>Opredeliteli po Faune SSR, Akademiya Nauk, SSSR.</em> 171: 1-380 [in Russian]. [details] Available for editors
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Depth range 8-5223 [details]type locality Christiana Fjord [details]
Unreviewed
Distribution Saguenay Fjord; lower St. Lawrence estuary [details]Habitat bathyal and circalittoral of the Gulf and estuary [details]
To Barcode of Life (3 barcodes)
To Biodiversity Heritage Library (14 publications)
To Biodiversity Heritage Library (6 publications) (from synonym Mesostenus longicornis G. O. Sars, 1864)
To European Nucleotide Archive, ENA (Ilyarachna longicornis)
To GenBank (14 nucleotides; 5 proteins) (from synonym Mesostenus longicornis G. O. Sars, 1864)
To GenBank (14 nucleotides; 5 proteins)
To PESI
To PESI (from synonym Ilyarachna derjugini Gurjanova, 1946)
To The Arctic Traits Database (25 traits)
To USNM Invertebrate Zoology Arthropoda Collection (3 records)
To ITIS
To Biodiversity Heritage Library (14 publications)
To Biodiversity Heritage Library (6 publications) (from synonym Mesostenus longicornis G. O. Sars, 1864)
To European Nucleotide Archive, ENA (Ilyarachna longicornis)
To GenBank (14 nucleotides; 5 proteins) (from synonym Mesostenus longicornis G. O. Sars, 1864)
To GenBank (14 nucleotides; 5 proteins)
To PESI
To PESI (from synonym Ilyarachna derjugini Gurjanova, 1946)
To The Arctic Traits Database (25 traits)
To USNM Invertebrate Zoology Arthropoda Collection (3 records)
To ITIS
