WoRMS taxon details
Synidotea bicuspida (Owen, 1839)
156445 (urn:lsid:marinespecies.org:taxname:156445)
accepted
Species
Edotea bicuspida (Owen, 1839) · unaccepted > superseded combination
Edotia bicuspida (Owen, 1839) · unaccepted > superseded combination
Idotaea pulchra Lockington, 1877 · unaccepted > junior subjective synonym
Idotea bicuspida Owen, 1839 · unaccepted (superseded original combination)
Idotea rugulosa Buchholz, 1874 · unaccepted (junior subjective synonym)
Synidotea incisa G. O. Sars, 1879 · unaccepted (junior subjective synonym)
marine, brackish, fresh, terrestrial
recent only
(of Idotea bicuspida Owen, 1839) Owen, R. (1839). In: Beechey, F.W., The Zoology of Captain Beechey's Voyage; Compiled from the Collections and Notes Made by Captain Beechey, the Officers and Naturalists of the Expedition, during a Voyage to the Pacific and Behring Straits Performed in His Majesty's Ship Blossom, under the Command of Captain F.W. Beechey, R.N., F.R.S, &c, in the years 1825, 26, 27 and 28: 77-97, pls. 24-28. London. [details] 
Depth range 6-250
Distribution Saguenay Fjord, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern...
Depth range 6-250 [details]
Distribution Saguenay Fjord, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern...
Distribution 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 [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. Synidotea bicuspida (Owen, 1839). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=156445 on 2025-09-23
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Nomenclature
original description
(of Idotaea pulchra Lockington, 1877) Lockington, W.N. (1877). Description of seventeen new species of Crustacea. <em>Proceedings of the California Academy of Sciences.</em> 7 [for 1876]: 41-48. [details] 
original description (of Idotea rugulosa Buchholz, 1874) Buchholz, R. (1874). Die zweite deutsche Nordpolarfahrd in den Jahren 1869 und 1870 unter Fuhrung des Kapitan Koldewey. <em>Svenska Vetenskaps-akademiens Handlingar.</em> 2(8): 262-270. [details]
original description (of Synidotea incisa G. O. Sars, 1879) Sars, G.O. (1879). Crustacea et Pycnogonida nova in itinere 2do et 3tio expeditionis Norvegicae anno 1877 & 78 collecta (prodromus descriptionis). [New Crustacea and Pycnogonida collected during the 2nd and 3rd voyages of the Norwegian expedition in 1877 & 78 (prologue to the description). <em>Archiv for Mathematik og Naturvidenskab.</em> 4: 427-476. (look up in IMIS) [details]
original description (of Idotea bicuspida Owen, 1839) Owen, R. (1839). In: Beechey, F.W., The Zoology of Captain Beechey's Voyage; Compiled from the Collections and Notes Made by Captain Beechey, the Officers and Naturalists of the Expedition, during a Voyage to the Pacific and Behring Straits Performed in His Majesty's Ship Blossom, under the Command of Captain F.W. Beechey, R.N., F.R.S, &c, in the years 1825, 26, 27 and 28: 77-97, pls. 24-28. London. [details]
basis of record 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]
original description (of Idotea rugulosa Buchholz, 1874) Buchholz, R. (1874). Die zweite deutsche Nordpolarfahrd in den Jahren 1869 und 1870 unter Fuhrung des Kapitan Koldewey. <em>Svenska Vetenskaps-akademiens Handlingar.</em> 2(8): 262-270. [details]
original description (of Synidotea incisa G. O. Sars, 1879) Sars, G.O. (1879). Crustacea et Pycnogonida nova in itinere 2do et 3tio expeditionis Norvegicae anno 1877 & 78 collecta (prodromus descriptionis). [New Crustacea and Pycnogonida collected during the 2nd and 3rd voyages of the Norwegian expedition in 1877 & 78 (prologue to the description). <em>Archiv for Mathematik og Naturvidenskab.</em> 4: 427-476. (look up in IMIS) [details]
original description (of Idotea bicuspida Owen, 1839) Owen, R. (1839). In: Beechey, F.W., The Zoology of Captain Beechey's Voyage; Compiled from the Collections and Notes Made by Captain Beechey, the Officers and Naturalists of the Expedition, during a Voyage to the Pacific and Behring Straits Performed in His Majesty's Ship Blossom, under the Command of Captain F.W. Beechey, R.N., F.R.S, &c, in the years 1825, 26, 27 and 28: 77-97, pls. 24-28. London. [details]
basis of record 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]
Other





Syntype (of Idotaea pulchra Lockington, 1877), verbatimGeounit USA. W coast of Alas... [details]
Unknown type (of Idotea rugulosa Buchholz, 1874) [details]
Unknown type (of Idotea bicuspida Owen, 1839) MRCS [details]
From editor or global species database
Depth range 6-250 [details]Unreviewed
Distribution 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 [details]Habitat intertidal, bathyal, infralittoral and circalittoral of the Gulf and estuary [details]