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Polychaeta name details

Autolytus torquens Chamberlin, 1919

327070  (urn:lsid:marinespecies.org:taxname:327070)

 unaccepted (subjective synonym)
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): 172-174, plate 19 figs. 5-7 [details]   
Holotype  USNM 19338, locality Gilbert Islands (Pacific...  
Holotype USNM 19338, 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]
Note Pacific Ocean, Kiribati, northern Gilbert...  
From editor or global species database
Type 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]
Type material Holotype of Autolytus torquens (USNM 19338) is a female stolon.  [details]
Depth range Surface, taken at night by electric light.  
Depth range Surface, taken at night by electric light. [details]

Distribution Central Pacific Ocean: Kiribati, northern Gilbert Islands (off Abaiang). Only known from the type locality.  
Distribution Central Pacific Ocean: Kiribati, northern Gilbert Islands (off Abaiang). Only known from the type locality. [details]

Etymology The specific epithet torquens is the Latin word for 'twisting' or 'curling', and refers to the "strongly coiled state" of...  
Etymology The specific epithet torquens is the Latin word for 'twisting' or 'curling', and refers to the "strongly coiled state" of the body of the holotype (Chamberlin, 1919: 172).  [details]

Taxonomy Nygren (2004: 112) revised the types of Autolytus obliquatus and A. torquens, considered to be male and female stolons of...  
Taxonomy 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]
Read, G.; Fauchald, K. (Ed.) (2018). World Polychaeta database. Autolytus torquens Chamberlin, 1919. Accessed at: http://www.marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=327070 on 2018-04-23
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): 172-174, plate 19 figs. 5-7 [details]   

source of synonymy 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 
 

Holotype USNM 19338, 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
Depth range Surface, taken at night by electric light. [details]

Distribution Central Pacific Ocean: Kiribati, northern Gilbert Islands (off Abaiang). Only known from the type locality. [details]

Etymology The specific epithet torquens is the Latin word for 'twisting' or 'curling', and refers to the "strongly coiled state" of the body of the holotype (Chamberlin, 1919: 172).  [details]

Habitat 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]

Taxonomy 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]

Type 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]

Type material Holotype of Autolytus torquens (USNM 19338) is a female stolon.  [details]