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Polychaeta taxon details

Thelepus natans Kinberg, 1867

340137  (urn:lsid:marinespecies.org:taxname:340137)

accepted
Species
marine, brackish, fresh, terrestrial
recent only
Kinberg, J.G.H. (1866 [or 1867]). Annulata nova. [Continuatio.]. <em>Öfversigt af Königlich Vetenskapsakademiens förhandlingar, Stockholm.</em> 23(9): 337-357., available online at http://biodiversitylibrary.org/page/32287795
page(s): 345 [details]  OpenAccess publication 
Holotype  NRM 572, geounit Argentinean part of the...  
Holotype NRM 572, geounit Argentinean part of the South Atlantic Ocean [details]
Note Off the mouth of La Plata River, Argentina,...  
From editor or global species database
Type locality Off the mouth of La Plata River, Argentina, Atlantic Ocean (-48°, -65°). The type locality was stated by Kinberg as being 'off the mouth of La Plata River', but the provided geocoordinates place the site farther southwards, in the vicinity of Cabo Blanco. [details]
Depth range Apparently collected swimming near the surface of the water: "ubi summam aquam fucumque natantem habitat" (Kinberg, 1867: 345).  
Depth range Apparently collected swimming near the surface of the water: "ubi summam aquam fucumque natantem habitat" (Kinberg, 1867: 345). [details]

Distribution South Atlantic Ocean: off Argentina.  
Distribution South Atlantic Ocean: off Argentina. [details]

Etymology Not stated in the original description. The specific epithet natans is a Latin participle meaning 'swimming' or 'floating',...  
Etymology Not stated in the original description. The specific epithet natans is a Latin participle meaning 'swimming' or 'floating', and refers presumably to the habitat where the specimen was found, apparently swimming near the surface of the water: "ubi summam aquam fucumque natantem habitat" (Kinberg, 1867: 345). [details]

Taxonomy Thelepus natans was considered to be a junior synonym of other species in two occasions. First, it was questionably...  
Taxonomy Thelepus natans was considered to be a junior synonym of other species in two occasions. First, it was questionably referred to Thelepus comatus (Grube, 1859) by Hessle (1917: 216), who compared the poorly preserved holotype of the first ("Wie gewöhnlich ist doch Kinbergs Originalexemplar allzu schlecht erhalten um eine sichere Identifizierung zu gestatten") with a specimen collected by Dusén in Chile and identified by Hessle as belonging to Thelepus comatus. However, apparently Hessle did not revise the type material of Thelepus comatus. Later, Glasby & Hutchings (1987) revised Dusén's Chilean specimen and referred it to a new species, Thelepus ambitus, while Thelepus natans was referred to Thelepus plagiostoma (Schmarda, 1861) (type locality: New Zealand), with base on the comparison of the type of the first with South African specimens identified as the later. Finally, Hutchings & Smith (1997) redescribed Thelepus plagiostoma with base on topotype material, designated a neotype and relocated the species in its original genus, Terebella. The species was restricted to New Zealand and nearby waters, and while the redescription included Leprea haplochaeta Ehlers, 1904 as a new synonymy, Thelepus natans was not included in the synoynmy list. Thus, apparently the species was removed from synonymy and becomes valid again. [details]
Read, G.; Fauchald, K. (Ed.) (2019). World Polychaeta database. Thelepus natans Kinberg, 1867. Accessed at: http://marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=340137 on 2020-02-27
Date
action
by
2008-03-18 12:55:09Z
created
2008-03-26 11:36:43Z
changed
2019-02-25 10:30:29Z
changed

original description Kinberg, J.G.H. (1866 [or 1867]). Annulata nova. [Continuatio.]. <em>Öfversigt af Königlich Vetenskapsakademiens förhandlingar, Stockholm.</em> 23(9): 337-357., available online at http://biodiversitylibrary.org/page/32287795
page(s): 345 [details]  OpenAccess publication 

source of synonymy Hessle, Christian. (1917). Zur Kenntnis der terebellomorphen Polychaeten. <em>Zoologiska bidrag från Uppsala.</em> 5: 39-258, plates I-V., available online at https://biodiversitylibrary.org/page/38891407
page(s): 216; note: questionably with Thelepus comatus (Grube, 1859) (now Streblosoma comatus[details]  OpenAccess publication 

source of synonymy Glasby, Christopher J.; Hutchings, Patricia A. (1987). A new species of <i>Thelepus</i> from Punta Arenas, Chile, together with a redescription of <i>Streblosoma comatus</i> (Grube) and <i>Thelepus pequenianus</i> Augener (Thelepinae: Terebellidae). <em>Journal of Natural History.</em> 21(4): 977-986., available online at https://doi.org/10.1080/00222938700770591
page(s): 985; note: with Thelepus plagiostoma (Schmarda, 1861) (now Terebella plagiostoma[details]  Available for editors  PDF available [request] 

redescription Hartman, Olga. (1948). The marine annelids erected by Kinberg. With some notes on some other types in the Swedish State Museum. <em>Arkiv för Zoologi.</em> 42(1): 1-137, & plates 1-18.
page(s): 125; note: revised the type material; refers Hessle's suggested synonymy, but mentions the species as Thelepus natans [details]   
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
 

Holotype NRM 572, geounit Argentinean part of the South Atlantic Ocean [details]
From editor or global species database
Depth range Apparently collected swimming near the surface of the water: "ubi summam aquam fucumque natantem habitat" (Kinberg, 1867: 345). [details]

Distribution South Atlantic Ocean: off Argentina. [details]

Etymology Not stated in the original description. The specific epithet natans is a Latin participle meaning 'swimming' or 'floating', and refers presumably to the habitat where the specimen was found, apparently swimming near the surface of the water: "ubi summam aquam fucumque natantem habitat" (Kinberg, 1867: 345). [details]

Habitat The species was apparently found swimming near the surface of the water: "ubi summam aquam fucumque natantem habitat" (Kinberg, 1867: 345). [details]

Holotype Deposited at the Swedish Museum of Natural History, Stockholm (SSM 572). [details]

Taxonomy Thelepus natans was considered to be a junior synonym of other species in two occasions. First, it was questionably referred to Thelepus comatus (Grube, 1859) by Hessle (1917: 216), who compared the poorly preserved holotype of the first ("Wie gewöhnlich ist doch Kinbergs Originalexemplar allzu schlecht erhalten um eine sichere Identifizierung zu gestatten") with a specimen collected by Dusén in Chile and identified by Hessle as belonging to Thelepus comatus. However, apparently Hessle did not revise the type material of Thelepus comatus. Later, Glasby & Hutchings (1987) revised Dusén's Chilean specimen and referred it to a new species, Thelepus ambitus, while Thelepus natans was referred to Thelepus plagiostoma (Schmarda, 1861) (type locality: New Zealand), with base on the comparison of the type of the first with South African specimens identified as the later. Finally, Hutchings & Smith (1997) redescribed Thelepus plagiostoma with base on topotype material, designated a neotype and relocated the species in its original genus, Terebella. The species was restricted to New Zealand and nearby waters, and while the redescription included Leprea haplochaeta Ehlers, 1904 as a new synonymy, Thelepus natans was not included in the synoynmy list. Thus, apparently the species was removed from synonymy and becomes valid again. [details]

Type locality Off the mouth of La Plata River, Argentina, Atlantic Ocean (-48°, -65°). The type locality was stated by Kinberg as being 'off the mouth of La Plata River', but the provided geocoordinates place the site farther southwards, in the vicinity of Cabo Blanco. [details]