(ofEphesia gracilis Rathke, 1843)Rathke, H. (1843). Beiträge zur Fauna Norwegens. [Contributions to the Fauna of Norway]. <em>Nova Acta Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum, Breslau & Bonn.</em> 20: 1-264., available online athttps://doi.org/10.5962/bhl.title.11613 page(s): 176, plate VII figs. 5-8 [details]
Type locality contained in Norwegian Exclusive Economic Zone
type locality contained in Norwegian Exclusive Economic Zone [from synonym] [view taxon][details]
Distribution Gulf of St. Lawrence (unspecified region), Saguenay Fjord, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American,...
Distribution Gulf of St. Lawrence (unspecified region), Saguenay Fjord, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern Bradelle Valley), downstream part of middle St. Lawrence estuary, lower St. Lawrence estuary, Laurentian Channel (bathyal zone)(=Honguedo Strait); South slope of Anticosti Island. [details]
Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Sphaerodorum gracilis (Rathke, 1843). 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=131100 on 2026-07-04
Glover, A.G.; Higgs, N.; Horton, T. (2026). World Register of Deep-Sea species (WoRDSS). Sphaerodorum gracilis (Rathke, 1843). Accessed at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=131100 on 2026-07-04
original description(ofEphesia gracilis Rathke, 1843)Rathke, H. (1843). Beiträge zur Fauna Norwegens. [Contributions to the Fauna of Norway]. <em>Nova Acta Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum, Breslau & Bonn.</em> 20: 1-264., available online athttps://doi.org/10.5962/bhl.title.11613 page(s): 176, plate VII figs. 5-8 [details]
context source (Deepsea)Budaeva N.E., Jirkov I.A., Savilova T.A., Paterson G.L.J. (2014). Deep-sea fauna of European seas: An annotated species check-list of benthic invertebrates living deeper than 2000 m in the seas bordering Europe. Polychaeta. <i>Invertebrate Zoology</i>. Vol.11. No.1: 217–230 [in English]., available online athttps://doi.org/10.15298/invertzool.11.1.20[details] Available for editors
context source (BeRMS 2020)Bio-environmental research group; Institute of Agricultural and Fisheries research (ILVO), Belgium; (2016): Macrobenthos monitoring at long-term monitoring stations in the Belgian part of the North Sea from 2001 on.[details]
additional sourceFauchald, K. (1977). The polychaete worms, definitions and keys to the orders, families and genera. <em>Natural History Museum of Los Angeles County: Los Angeles, CA (USA), Science Series.</em> 28:1-188., available online athttp://www.vliz.be/imisdocs/publications/123110.pdf[details]
additional sourceIntegrated Taxonomic Information System (ITIS). , available online athttp://www.itis.gov[details]
additional sourceBellan, G. (2001). Polychaeta, <i>in</i>: Costello, M.J. <i>et al.</i> (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Collection Patrimoines Naturels.</em> 50: 214-231. (look up in IMIS) [details]
additional sourceBrunel, 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 sourceFauchald, Kristian. (1974). Sphaerodoridae (Polychaeta: Errantia) from world-wide areas. <em>Journal of Natural History.</em> 8(3): 257-289., available online athttps://doi.org/10.1080/00222937400770241[details] Available for editors
additional sourceHartman, Olga. (1959). Catalogue of the Polychaetous Annelids of the World. Parts 1 and 2. <em>Allan Hancock Foundation Occasional Paper.</em> 23: 1-628.[details] Available for editors
additional sourceJohnston, G. (1865). A catalogue of the British non-parasitical worms in the collection of the British Museum. <em>[book].</em> 1-365. British Museum. London. [See also separate entry for Baird supplement]., available online athttp://www.biodiversitylibrary.org/bibliography/12291[details]
source of synonymyPettibone, Marian H. (1963). Marine polychaete worms of the New England region. I. Aphroditidae through Trochochaetidae. <i>Bulletin of the United States National Museum</i>. 227(1): 1-356., available online athttps://www.biodiversitylibrary.org/page/7870746[details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Distribution Gulf of St. Lawrence (unspecified region), Saguenay Fjord, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern Bradelle Valley), downstream part of middle St. Lawrence estuary, lower St. Lawrence estuary, Laurentian Channel (bathyal zone)(=Honguedo Strait); South slope of Anticosti Island. [details] Habitat bathyal and circalittoral of the Gulf and estuary [details] Validity RAMS isn't sure about the Genus name of this species [details]