WoRMS banner
Add search provider Add provider
Twitter: Latest updates @WRMarineSpecies

WoRMS taxon details

Checked: verified by a taxonomic editorEnsis directus (Conrad, 1843) 
AphiaID: 140732

Classification: Biota > Checked: verified by a taxonomic editorAnimalia (Kingdom) > Checked: verified by a taxonomic editorMollusca (Phylum) > Checked: verified by a taxonomic editorBivalvia (Class) > Checked: verified by a taxonomic editorHeterodonta (Subclass) > Checked: verified by a taxonomic editorEuheterodonta (Infraclass) > Checked: verified by a taxonomic editor[unassigned] Euheterodonta (Order) > Checked: verified by a taxonomic editorSolenoidea (Superfamily) > Checked: verified by a taxonomic editorPharidae (Family) > Checked: verified by a taxonomic editorEnsis (Genus) > Checked: verified by a taxonomic editorEnsis directus (Species)
Status accepted
Rank Species
Parent Checked: verified by a taxonomic editorEnsis Schumacher, 1817
Synonymised
names
  Unreviewed: has not been verified by a taxonomic editorEnsis americanus (Gould, 1870) (synonym)
Checked: verified by a taxonomic editorEnsis arcuatus var. directus
Checked: verified by a taxonomic editorSolen directus Conrad, 1843
Unreviewed: has not been verified by a taxonomic editorSolen ensis americana Gould & Binney, 1870 (synonym)
Checked: verified by a taxonomic editorSolen ensis var. americana Gould & Binney, 1870 (synonym)
Sources  basis of record Cosel R. von, 2009. The razor shells of the eastern Atlantic, part 2. Pharidae II: the genus Ensis Schumacher, 1817 (Bivalvia, Solenoidea). Basteria, 73: 9-56  [details]

[show all]
Vernacular
Names
 
Language   Name 
Danish Unreviewed: has not been verified by a taxonomic editorAmerikansk knivmusling  [details]
Dutch Unreviewed: has not been verified by a taxonomic editorAmerikaanse zwaardschede  [details]
English Unreviewed: has not been verified by a taxonomic editorAtlantic jack knife clamUnreviewed: has not been verified by a taxonomic editorAmerican jack knife clam  [details]
French Unreviewed: has not been verified by a taxonomic editorcouteau droitUnreviewed: has not been verified by a taxonomic editorcouteau américainUnreviewed: has not been verified by a taxonomic editorcouteau  [details]
German Unreviewed: has not been verified by a taxonomic editorAmerikanische SchwertmuschelUnreviewed: has not been verified by a taxonomic editorAmerikanische Scheidenmuschel  [details]
Norwegian Bokmål Unreviewed: has not been verified by a taxonomic editoramerikaknivskjell [from synonym]  [details]
Norwegian Nynorsk Unreviewed: has not been verified by a taxonomic editoramerikaknivskjel [from synonym]  [details]
Environment marine, brackish, fresh, terrestrial
Distribution 
From regional or thematic species database
Baltic Sea
Trusted: edited by a thematic editorBaltic sea (introduced: alien) [from synonym] [view taxon] [details]
Celtic Sea
Trusted: edited by a thematic editorCeltic Sea (introduced: alien) [from synonym] [view taxon] [details]
English Channel
Trusted: edited by a thematic editorManche (introduced: alien[details]
North Sea
Trusted: edited by a thematic editorNorth Sea (introduced: alien[details]
United Kingdom
Trusted: edited by a thematic editorUnited Kingdom (introduced: alien[details]
From other sources
Baelt Sea
Unreviewed: has not been verified by a taxonomic editorBelt Sea (introduced: alien) [from synonym] [view taxon] [details]
Baltic Sea
Unreviewed: has not been verified by a taxonomic editorBaltic sea (introduced: alien) [from synonym] [view taxon] [details]
Bay of Fundy
Unreviewed: has not been verified by a taxonomic editorCobscook Bay [details]
Belgium
Unreviewed: has not been verified by a taxonomic editorDe Haan [details]
Unreviewed: has not been verified by a taxonomic editorDe Panne [details]
Unreviewed: has not been verified by a taxonomic editorOostduinkerke [details]
Unreviewed: has not been verified by a taxonomic editorZeebrugge [details]
English Channel
Unreviewed: has not been verified by a taxonomic editorBay of the Somme [details]
France
Unreviewed: has not been verified by a taxonomic editorBoulogne-sur-Mer [details]
Unreviewed: has not been verified by a taxonomic editorDunkerque [details]
Unreviewed: has not been verified by a taxonomic editorWimereux [details]
Gulf of Mexico
Unreviewed: has not been verified by a taxonomic editorGulf of Mexico [details]
Gulf of Saint Lawrence
Unreviewed: has not been verified by a taxonomic editorGulf of St. Lawrence [details]
Unreviewed: has not been verified by a taxonomic editorManicouagan [details]
Unreviewed: has not been verified by a taxonomic editorSt. Lawrence Estuary [details]
Netherlands
Unreviewed: has not been verified by a taxonomic editorZeeland [from synonym] [view taxon] [details]
North Atlantic Ocean
Unreviewed: has not been verified by a taxonomic editorEuropean waters (ERMS scope) [details]
Unreviewed: has not been verified by a taxonomic editorGulf of Maine [details]
Unreviewed: has not been verified by a taxonomic editorNorth East Atlantic [details]
Unreviewed: has not been verified by a taxonomic editorNorth West Atlantic [details]
Unreviewed: has not been verified by a taxonomic editorUnited Kingdom Exclusive Economic Zone [from synonym] [view taxon] [details]
North Sea
Unreviewed: has not been verified by a taxonomic editorBelgian Exclusive Economic Zone [details]
Unreviewed: has not been verified by a taxonomic editorDutch Exclusive Economic Zone [details]
Unreviewed: has not been verified by a taxonomic editorElbe [from synonym] [view taxon] [details]
Unreviewed: has not been verified by a taxonomic editorGerman Bight (introduced: alien[details]
Unreviewed: has not been verified by a taxonomic editorGerman Exclusive Economic Zone [North Sea part] (introduced: alien[details]
Unreviewed: has not been verified by a taxonomic editorNorth Sea (introduced: alien[details]
Wadden Sea
Unreviewed: has not been verified by a taxonomic editorWadden Sea [details]
(no group)
Unreviewed: has not been verified by a taxonomic editorAtlantic Europe (introduced: alien[details]
Unreviewed: has not been verified by a taxonomic editorDanish Exclusive Economic Zone [details]
Feedingtype  suspension feeder [details]
Host of  Checked: verified by a taxonomic editorMyocheres major (Williams, 1907) (parasitic: ectoparasitic)
Links Unreviewed: has not been verified by a taxonomic editorDelivering Alien Invasive Species Inventories for Europe (DAISIE) 
Unreviewed: has not been verified by a taxonomic editorEuropean Network on Invasive Alien Species (NOBANIS) - Ensis americanus 
Unreviewed: has not been verified by a taxonomic editorTo Barcode of Life (7 barcodes) 
Unreviewed: has not been verified by a taxonomic editorTo Biodiversity Heritage Library (127 publications) 
Unreviewed: has not been verified by a taxonomic editorTo CLEMAM 
Unreviewed: has not been verified by a taxonomic editorTo Encyclopedia of Life 
Unreviewed: has not been verified by a taxonomic editorTo GenBank (596 nucleotides; 183 proteins) 
Unreviewed: has not been verified by a taxonomic editorTo Marine Bivalves of the British Isles webpage at National Museum of Wales 
Unreviewed: has not been verified by a taxonomic editorTo PESI 
Unreviewed: has not been verified by a taxonomic editorTo USNM Invertebrate Zoology Mollusca Collection 
Unreviewed: has not been verified by a taxonomic editorTo ITIS
Notes 
From regional or thematic species database
Trusted: edited by a thematic editorIntroduced species impact in United Kingdom (Nation) : Outcompetes native species for resources and/or space [details]

Trusted: edited by a thematic editorIntroduced species impact in Germany (Nation) : Other impact - undefined or uncertain [details]

Trusted: edited by a thematic editorIntroduced species remark in United Kingdom (Nation) : Potential fishery [details]

Trusted: edited by a thematic editorIntroduced species remark In North Sea (IHO Sea Area) : Potential fishery [details]

Trusted: edited by a thematic editorIntroduced species remark In English Channel (IHO Sea Area) : Potential fishery [details]

Trusted: edited by a thematic editorIntroduced species vector dispersal in North Sea (IHO Sea Area) : Natural drift. [details]

Trusted: edited by a thematic editorIntroduced species vector dispersal in English Channel (IHO Sea Area) : Natural drift.  [details]

Trusted: edited by a thematic editorIntroduced species vector dispersal in United Kingdom (Nation) : Natural dispersal [details]

Trusted: edited by a thematic editorIntroduced species vector dispersal in United Kingdom (Nation) : Natural drift.  [details]

Trusted: edited by a thematic editorIntroduced species vector dispersal in Germany (Nation) : Shipping [details]

From other sources
Unreviewed: has not been verified by a taxonomic editorAlien species The American jack knife clam Ensis directus originates from the American east coast, and came to Europe through transport (of its larvae) in ballast water of cargo ships. In 1987, the first shells of the American jack knife clam were found on the beach of Oostduinkerke. Soon, the whole coastline was populated. The American jack knife clam is an opportunistic species. The impact on the ecosystem is twofold. Local economy can benefit from this species, as it can be fished and consumed, although the clam is also known to damage fishing nets. Although the species may serve as food for sea birds, its also feared that the American jack knife clam might negatively influence biodiversity. [details]

Unreviewed: has not been verified by a taxonomic editorBiology The unclosed side is turned up when burrowed into the substrate, mostly sand or muddy sand, in which it forms a hole. Goes up and down into the substrate with a respectable speed (disappears into sand within 15 seconds). [details]

Unreviewed: has not been verified by a taxonomic editorDiagnosis Conrad, 1843. Proc. Acad. nat. Sci. Philadelphia, 1: 325  [details]

Unreviewed: has not been verified by a taxonomic editorDistribution A recent immigrant from America, this species is now very common along the European coasts. First discovered on German North Sea Coasts in 1979, it had reached NE Denmark and the Dutch Wadden Sea by 1982, and NE France by 1991. [details]

Unreviewed: has not been verified by a taxonomic editorDistribution Labrador to Florida  [details]

Unreviewed: has not been verified by a taxonomic editorHabitat infralittoral and circalittoral of the Gulf and estuary [details]

Unreviewed: has not been verified by a taxonomic editorHabitat In sand or muddy sand. [details]

Unreviewed: has not been verified by a taxonomic editorMorphology Whitish-grey mollusc with brown drawings. Length six times as wide, slightly curved, and can attain at least 20 cm long. Both tips equally wide.With many growing bands and a scaly surface. As with all Ensis spp. one side is never completely closed. [details]
Images Unreviewed: has not been verified by a taxonomic editor[show unreviewed]
LSID urn:lsid:marinespecies.org:taxname:140732
Taxonomic
Edit history
 
Date   action   by
2004-12-21 15:54:05Z  created  Gofas, Serge
2009-09-05 11:22:23Z  changed  von Cosel, Rudo
  
[Taxonomic tree] [Occurrence map] [Google] [Google scholar] [Google images]
  Citation: von Cosel, R.; Gofas, S. (2014). Ensis directus. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=140732 on 2014-12-21
  Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License