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Polychaeta name details

Checked: verified by a taxonomic editorAutolytus obliquatus Chamberlin, 1919

327061  (urn:lsid:marinespecies.org:taxname:327061)

nomen dubium (incerta sedis)
Species
marine, brackish, fresh, terrestrial
recent only
Chamberlin, Ralph V. 1919. The Annelida Polychaeta [Albatross Expeditions]. Memoirs of the Museum of Comparative Zoology at Harvard College, 48: 1-514., available online at http://www.biodiversitylibrary.org/ia/memoirsofmuseumo4801harv
page(s): 168-170, plate 19 fig. 8, plate 20 figs. 1-3 [details]   
Checked: verified by a taxonomic editorHolotype  USNM 19336, locality Gilbert Islands (Pacific...  
Checked: verified by a taxonomic editorHolotype USNM 19336, locality Gilbert Islands (Pacific Ocean, Kiribati, northern Gilbert Islands, off Apaiang (= Abaiang) (geocoordinates not provided, estimated with gazetteer to be approximately lat. 1.675º, long. 172.992º); surface, taken at night by electric light) [details]
Checked: verified by a taxonomic editorNote Pacific Ocean, Kiribati, northern Gilbert...  
From editor or global species database
Checked: verified by a taxonomic editorType locality Pacific Ocean, Kiribati, northern Gilbert Islands, off Apaiang (= Abaiang) (geocoordinates not provided, estimated with gazetteer to be approximately lat. 1.675º, long. 172.992º); surface, taken at night by electric light.  [details]
Checked: verified by a taxonomic editorType material Holotype of Autolytus obliquatus (USNM 19336) is a male stolon.  [details]
Checked: verified by a taxonomic editorDepth range Surface, taken at night by electric light.   
Checked: verified by a taxonomic editorDepth range Surface, taken at night by electric light.  [details]

Checked: verified by a taxonomic editorDistribution Central Pacific Ocean: Kiribati, northern...  
Checked: verified by a taxonomic editorDistribution Central Pacific Ocean: Kiribati, northern Gilbert Islands (off Abaiang). Only known from the type locality.  [details]

Checked: verified by a taxonomic editorEtymology The specific epithet obliquatus is the Latin...  
Checked: verified by a taxonomic editorEtymology The specific epithet obliquatus is the Latin word for 'to bend to the side' or 'twisted aside', and seems to refer to the palps of the species, stated by Chamberlin (1919: 170) to be "conspicuously geniculate near the base, the organs distad of the angle extending directly ectad and presenting a very characteristic appearance".  [details]

Checked: verified by a taxonomic editorTaxonomy Nygren (2004: 112) revised the types of...  
Checked: verified by a taxonomic editorTaxonomy Nygren (2004: 112) revised the types of Autolytus obliquatus and A. torquens, considered to be male and female stolons of the same species: "Both taxa have 6 chaetigers in region a, achaetous knobs, large distal tooth in compound chaetae, and a thin bayonet chaetae. The specimens were also collected at the same locality at the same occasion. Stolons with 6 chaetigers in region a, in combination with achaetous knobs are only found in Procerini, and the only described atokes with thin bayonet chaetae in this group are Proceraea anopla, and Imajimaea spp. None of the known Imajimaea species possess a large distal tooth in their compounds, but P. anopla does. Considering these characters, it is possible, that A. obliquatus closest relative is P. anopla. Mature stolons are unknown for P. anopla, but the colour pattern is very distinct in P. anopla, even in preserved specimens; possible synonymy is thus excluded. However, as the atoke is unknown in A. obliquatus, it is not at present certain to what genus it should be referred, it is here considered as Procerini incertae sedis.[details]
Gil, J. (2015). Autolytus obliquatus Chamberlin, 1919. In: Read, G.; Fauchald, K. (Ed.) (2017). World Polychaeta database. Accessed at http://www.marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=327061 on 2017-12-16

Date
action
by
2008-03-17 10:44:16Z
created
2008-03-26 11:36:43Z
changed
2015-11-07 16:14:26Z
changed

original description Chamberlin, Ralph V. 1919. The Annelida Polychaeta [Albatross Expeditions]. Memoirs of the Museum of Comparative Zoology at Harvard College, 48: 1-514., available online at http://www.biodiversitylibrary.org/ia/memoirsofmuseumo4801harv
page(s): 168-170, plate 19 fig. 8, plate 20 figs. 1-3 [details]   

original description  (ofChecked: verified by a taxonomic editorAutolytus torquens Chamberlin, 1919) Chamberlin, Ralph V. 1919. The Annelida Polychaeta [Albatross Expeditions]. Memoirs of the Museum of Comparative Zoology at Harvard College, 48: 1-514., available online at http://www.biodiversitylibrary.org/ia/memoirsofmuseumo4801harv
page(s): 172-174, plate 19 figs. 5-7 [details]   

redescription Nygren, Arne. (2004). Revision of Autolytinae (Syllidae: Polychaeta). Zootaxa. 680: 1-314., available online at http://www.mapress.com/zootaxa/2004f/z00680f.pdf
page(s): 110-112, fig. 52A-F [details]  Available for editors  PDF available [request] 

source of synonymy  (ofChecked: verified by a taxonomic editorAutolytus torquens Chamberlin, 1919) Nygren, Arne. (2004). Revision of Autolytinae (Syllidae: Polychaeta). Zootaxa. 680: 1-314., available online at http://www.mapress.com/zootaxa/2004f/z00680f.pdf
page(s): 110-112, fig. 52A-F [details]  Available for editors  PDF available [request] 
 
 Present  Inaccurate  Introduced: alien 
 

Checked: verified by a taxonomic editorHolotype USNM 19336, locality Gilbert Islands (Pacific Ocean, Kiribati, northern Gilbert Islands, off Apaiang (= Abaiang) (geocoordinates not provided, estimated with gazetteer to be approximately lat. 1.675º, long. 172.992º); surface, taken at night by electric light) [details]
From editor or global species database
Checked: verified by a taxonomic editorDepth range Surface, taken at night by electric light.  [details]

Checked: verified by a taxonomic editorDistribution Central Pacific Ocean: Kiribati, northern Gilbert Islands (off Abaiang). Only known from the type locality.  [details]

Checked: verified by a taxonomic editorEtymology The specific epithet obliquatus is the Latin word for 'to bend to the side' or 'twisted aside', and seems to refer to the palps of the species, stated by Chamberlin (1919: 170) to be "conspicuously geniculate near the base, the organs distad of the angle extending directly ectad and presenting a very characteristic appearance".  [details]

Checked: verified by a taxonomic editorHabitat The only known specimens were collected at the surface, at night by electric night. All the specimens were reproductive stolons, and the atokous form and its habitat is not known.  [details]

Checked: verified by a taxonomic editorTaxonomy Nygren (2004: 112) revised the types of Autolytus obliquatus and A. torquens, considered to be male and female stolons of the same species: "Both taxa have 6 chaetigers in region a, achaetous knobs, large distal tooth in compound chaetae, and a thin bayonet chaetae. The specimens were also collected at the same locality at the same occasion. Stolons with 6 chaetigers in region a, in combination with achaetous knobs are only found in Procerini, and the only described atokes with thin bayonet chaetae in this group are Proceraea anopla, and Imajimaea spp. None of the known Imajimaea species possess a large distal tooth in their compounds, but P. anopla does. Considering these characters, it is possible, that A. obliquatus closest relative is P. anopla. Mature stolons are unknown for P. anopla, but the colour pattern is very distinct in P. anopla, even in preserved specimens; possible synonymy is thus excluded. However, as the atoke is unknown in A. obliquatus, it is not at present certain to what genus it should be referred, it is here considered as Procerini incertae sedis.[details]

Checked: verified by a taxonomic editorType locality Pacific Ocean, Kiribati, northern Gilbert Islands, off Apaiang (= Abaiang) (geocoordinates not provided, estimated with gazetteer to be approximately lat. 1.675º, long. 172.992º); surface, taken at night by electric light.  [details]

Checked: verified by a taxonomic editorType material Holotype of Autolytus obliquatus (USNM 19336) is a male stolon.  [details]