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Polychaeta taxon details

Checked: verified by a taxonomic editorAcrocirrus crassifilis Moore, 1923

326212  (urn:lsid:marinespecies.org:taxname:326212)

accepted
Species
marine, brackish, fresh, terrestrial
recent only
Moore, J. Percy. (1923). The polychaetous annelids dredged by the U.S.S. ''Albatross'' off the coast of southern California in 1904. IV. Spionidae to Sabellariidae. Proceedings of the Academy of Natural Sciences of Philadelphia. 75: 179-259, plates XVII-XVIII., available online at http://dx.doi.org/10.5962/bhl.title.12425
page(s): 188-190, plate XVII figs. 3-7 [details]   
Checked: verified by a taxonomic editorHolotype  USNM 17249, locality California (Pacific...  
Checked: verified by a taxonomic editorHolotype USNM 17249, locality California (Pacific Ocean, USA, California, Channel Islands, Gull Island, S. coast of Santa Cruz Island, N. 40d E., 2.7 miles, R/V Albatross Sta. 4430 (33º57'02''N, 119º49'28''W); 197-281 fathoms (= 360.3-513.9 meters), black sand, pebbles, rock) [details]
Checked: verified by a taxonomic editorNote Pacific Ocean, USA, California, Channel...  
From editor or global species database
Checked: verified by a taxonomic editorType locality Pacific Ocean, USA, California, Channel Islands, Gull Island, S. coast of Santa Cruz Island, N. 40d E., 2.7 miles, (33º57'02''N, 119º49'28''W), 197-281 fathoms (= 360.3-513.9 meters), black sand, pebbles, rock.  [details]
Checked: verified by a taxonomic editorDepth range Slope depths: 360-514 m.  
Checked: verified by a taxonomic editorDepth range Slope depths: 360-514 m. [details]

Checked: verified by a taxonomic editorDistribution Pacific Ocean: off California (USA).  
Checked: verified by a taxonomic editorDistribution Pacific Ocean: off California (USA). [details]

Checked: verified by a taxonomic editorEtymology Not stated. The specific epithet crassifilis...  
Checked: verified by a taxonomic editorEtymology Not stated. The specific epithet crassifilis is composed by the Latin adjective crassi, plural of crassus and meaning 'thick' or 'gross', and the Latin noun filis, plural of filum and meaning 'thread', 'string' or 'filament', and presumably refers to the presence of thick filiform appendages in the species, such as the "large, prehensile tentacles, which are thick and transversely grooved at the base and in the contracted state" and the "Four pairs of stout [...] gills [...] about as thick as the cephalic tentacles and equal in length the anterior 18 to 22 segments" (Moore, 1923: 189). [details]
Polychaeta (2008). Acrocirrus crassifilis Moore, 1923. In: Read, G.; Fauchald, K. (Ed.) (2017). World Polychaeta database. Accessed at http://www.marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=326212 on 2017-12-18

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

original description Moore, J. Percy. (1923). The polychaetous annelids dredged by the U.S.S. ''Albatross'' off the coast of southern California in 1904. IV. Spionidae to Sabellariidae. Proceedings of the Academy of Natural Sciences of Philadelphia. 75: 179-259, plates XVII-XVIII., available online at http://dx.doi.org/10.5962/bhl.title.12425
page(s): 188-190, plate XVII figs. 3-7 [details]   

additional source Banse, K. (1969). Acrocirridae n.fam. (Polychaeta Sedentaria). Journal of the Fisheries Research Board of Canada. 26(10): 2595-2620., available online at http://dx.doi.org/10.1139/f69-253
page(s): 2603-2604, figs. 1b-c, 1g, 2 [details]   
 
 Present  Inaccurate  Introduced: alien 
 

Checked: verified by a taxonomic editorHolotype USNM 17249, locality California (Pacific Ocean, USA, California, Channel Islands, Gull Island, S. coast of Santa Cruz Island, N. 40d E., 2.7 miles, R/V Albatross Sta. 4430 (33º57'02''N, 119º49'28''W); 197-281 fathoms (= 360.3-513.9 meters), black sand, pebbles, rock) [details]
From editor or global species database
Checked: verified by a taxonomic editorDepth range Slope depths: 360-514 m. [details]

Checked: verified by a taxonomic editorDistribution Pacific Ocean: off California (USA). [details]

Checked: verified by a taxonomic editorEtymology Not stated. The specific epithet crassifilis is composed by the Latin adjective crassi, plural of crassus and meaning 'thick' or 'gross', and the Latin noun filis, plural of filum and meaning 'thread', 'string' or 'filament', and presumably refers to the presence of thick filiform appendages in the species, such as the "large, prehensile tentacles, which are thick and transversely grooved at the base and in the contracted state" and the "Four pairs of stout [...] gills [...] about as thick as the cephalic tentacles and equal in length the anterior 18 to 22 segments" (Moore, 1923: 189). [details]

Checked: verified by a taxonomic editorHabitat Black sand, pebbles, and rocks, at slope depths.  [details]

Checked: verified by a taxonomic editorSpecimen Holotype deposited at the Smithsonian Institution, Washington (USNM 17249).  [details]

Checked: verified by a taxonomic editorType locality Pacific Ocean, USA, California, Channel Islands, Gull Island, S. coast of Santa Cruz Island, N. 40d E., 2.7 miles, (33º57'02''N, 119º49'28''W), 197-281 fathoms (= 360.3-513.9 meters), black sand, pebbles, rock.  [details]