Grimpoteuthis plena
{{Short description|Species of octopus}}
{{Speciesbox
| image = GrimpoteuthisPlena.jpg
| image_caption = G. plena
| image_alt = Black-and-white drawing of an octopus.
| status = DD
| status_system = IUCN3.1
| taxon = Grimpoteuthis plena
| authority = Verrill, 1885{{cite web |last1=Cuvelier |first1=Daphne |last2=Rosenberg |first2=Gary |last3=Bouchet |first3=Philippe |title=Grimpoteuthis plena |url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=157021 |website=World Register of Marine Species |accessdate=11 June 2018}}
| synonyms = *Cirroteuthis plena
}}
Grimpoteuthis plena is known from only one specimen, which cannot be easily separated from other species of Grimpoteuthis in the Atlantic Ocean.{{cite web |last1=Vecchione |first1=Michael |last2=Young |first2=Richard E. |title=Grimpoteuthis plena |url=http://tolweb.org/Grimpoteuthis_plena/20127 |website=Tree of Life Web Project |accessdate=11 June 2018}} This species may be a senior synonym to Grimpoteuthis wuelkeri (but has fewer suckers), but the poor condition of the only known specimen (the holotype) hinders comparison. Grimpoteuthis plena, along with G. wuelkeri and G. discoveryi, may all be junior synonyms of G. umbellata, but this also cannot be resolved given the poor condition of the only known G. umbellata specimen.{{Cite journal |last=Collins |first=Martin |last2=Villanueva |first2=Roger |date=2006 |title=Taxonomy, ecology, and behaviour of the cirrate octopods |journal=Oceanography and Marine Biology: An Annual Review |volume=44 |pages=277-322}}
Description and habitat
Grimpoteuthis plena was found in the northwestern Atlantic Ocean, at 1,963 meters deep.{{cite book |last1=Gibson |first1=R.N. |url=https://books.google.com/books?id=R7-TfdYeLEgC |title=Oceanography and Marine Biology: An Annual Review, Volume 44 |last2=Atkinson |first2=R. J. A. |last3=Gordon |first3=J. D. M. |date=2006 |publisher=CRC Press |isbn=978-1420006391 |edition=illustrated |page=298 |accessdate=11 June 2018}}{{cite book|editor1-last=Jereb|editor1-first=Patrizia|editor2-last=Roper|editor2-first=Clyde F.E.|editor3-last=Norman|editor3-first=Mark D.|editor4-last=Finn|editor4-first=Julian K.|title=Cephalopods of the World: an Annotated and Illustrated Catalog of Cephalopods Known to Date Volume 3. Octopods and Vampire Squids|date=2016|location=Rome|isbn=978-92-5-107989-8|page=263|url=http://www.fao.org/3/a-i3489e.pdf}} Like other members of Grimpoteuthidae, it could be demersal or bentho-pelagic. Specifically, the single known specimen of G. plena was collected at a latitude of 37º 35’N and a longitude of 71º 18’W in the northwestern Atlantic Ocean, with other species of the same genus being found nearby.{{Cite journal|last=Collins|first=Martin A.|date=2003-09-01|title=The genus Grimpoteuthis (Octopoda: Grimpoteuthidae) in the north-east Atlantic, with descriptions of three new species|journal=Zoological Journal of the Linnean Society|language=en|volume=139|issue=1|pages=93–127|doi=10.1046/j.1096-3642.2003.00074.x|issn=0024-4082|doi-access=free}} The single G. plena specimen was found in the year 1880 by Verrill.
The specimen's mantle reached 57 millimeters long, and its total length reached 185 millimeters. Some of its arms were longer than the others, with between 55 and 60 suckers per arm (largest suckers 2.5 millimeters in diameter). The octopus' cirri are short. Its fins are each 32 millimeters long. The eyes are small: each is 12 millimeters in diameter.
References
{{Reflist|30em}}
{{Taxonbar|from=Q2634571}}
Category:Molluscs of the Atlantic Ocean
Category:Cephalopods described in 1885
Category:Species known from a single specimen
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