Skip to main content Accessibility help
×
×
Home

Expanded description of Opisthoteuthis hardyi based on new specimens from the Patagonian slope

  • Martin A. Collins (a1), Vladimir Laptikhovsky (a2) and Jan M. Strugnell (a3)
Abstract

Opisthoteuthis hardyi was originally described from a single male specimen caught near Shag Rocks (north-west of South Georgia) and no further specimens have been attributed to this species. During research fishing on the Patagonian slope to the south-east of the Falkland Islands 33 specimens of Opisthoteuthis were caught at depths ranging from 630 to 1391 m. Morphological measurements indicated that these specimens were conspecific to the holotype of O. hardyi. The mitochondrial gene 16S rDNA was sequenced from two of these specimens and compared with a published sequence of the holotype and other Opisthoteuthidae to confirm the morphological data. This extends the geographical and bathymetric range of the species, which spans the Antarctic Polar Front. We also expand the original description, providing details of the digestive system and of the female reproductive system, with preliminary estimates of fecundity.

Copyright
Corresponding author
Correspondence should be addressed to: M.A. Collins, GSGSSI, Government House, Stanley, Falkland Islands, UK email: dof@gov.gs
References
Hide All
Allcock, A.L., Strugnell, J.M. and Johnson, M.P. (2008) How useful are the recommended counts and indices in the systematics of the Octopodidae (Mollusca: Cephalopoda). Biological Journal of the Linnean Society 95, 205218.
Allcock, A.L., Strugnell, J.M., Ruggiero, H. and Collins, M.A. (2006) Redescription of the deep-sea octopod Benthoctopus normani (Massy 1907) and a description of a new species from the Northeast Atlantic. Marine Biology Research 2, 372387.
Boyle, P.R. and Daly, H.I. (2000) Fecundity and spawning in a deepwater cirromorph octopus. Marine Biology 137, 317324.
Collins, M.A. (2003) The genus Grimpoteuthis (Octopoda: Grimpoteuthidae) in the north-east Atlantic, with descriptions of three new species. Zoological Journal of the Linnean Society 139, 93127.
Collins, M.A. (2005) Opisthoteuthis borealis: a new species of cirrate octopod from Greenland waters. Journal of the Marine Biological Association of the United Kingdom 85, 14751479.
Collins, M.A., Shreeve, R.S., Fielding, S. and Thurston, M.H. (2008) Distribution, growth, diet and foraging behaviour of the yellow-fin notothen Patagonotothen guntheri on the Shag Rocks shelf (Southern Ocean). Journal of Fish Biology 72, 271286.
Collins, M.A. and Villanueva, R. (2006) Taxonomy, ecology and behaviour of the cirrate octopods. Oceanography and Marine Biology: an Annual Review 44, 277322.
Daly, H.I., Boyle, P.R. and Collins, M.A. (1998) Reproductive status of Opisthoteuthis sp. over an annual cycle. South African Journal of Marine Science 20, 187192.
Guerra, A., Villanueva, R., Nesis, K.N. and Bedoya, J. (1998) Redescription of the deep-sea cirrate octopod Cirroteuthis magna Hoyle 1885, and considerations on the genus Cirroteuthis (Mollusca: Cephalopoda). Bulletin of Marine Science 63, 5181.
Main, C.E., Collins, M.A., Mitchell, R. and Belchier, M. (2008) Identifying patterns in diet of mackerel icefish (Champsocephalus gunnari) at South Georgia using bootstrapped confidence intervals of a dietary index. Polar Biology DOI: 10.1007/s00300-008-0552-7.
Piertney, S.B., Hudelot, C., Hochberg, F.G. and Collins, M.A. (2003) Phylogenetic relationships among cirrate octopods (Mollusca: Cephalopoda) resolved using mitochondrial 16S ribosomal DNA sequences. Molecular Phylogenetics and Evolution 27, 348353.
Rambaut, A. (2002) Se-Al Version 2.0a11 Carbon. Oxford University. Available from: http://tree.bio.ed.ac.uk/software/seal/
Rambaut, A. and Drummond, A.J. (2003) Tracer version 1.2. Available from: http://tree.bio.ed.ac.uk/software/tracer/
Ronquist, F. and Huelsenbeck, J.P. (2003) MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19, 15721574.
Roper, C.F.E. and Voss, G.L. (1983) Guidelines for taxonomic descriptions of cephalopod species. Memoirs of the National Museum, Victoria, Australia 44, 4963.
Saitou, N. and Nei, M. (1987) The neighbor-joining method: a new method for reconstructing phylogenetic trees. Molecular Biology and Evolution 4, 406425.
Shaw, P.W., Arkhipkin, A.I. and Al-Khairulla, H. (2004) Genetic structuring of Patagonian toothfish populations in the Southwest Atlantic Ocean: the effect of the Antarctic Polar Front and deep-water troughs as barriers to genetic exchange. Molecular Ecology 13, 32933303.
Strugnell, J.M., Collins, M.A. and Allcock, A.L. (2008a) Molecular evolutionary relationships of the octopodid genus Thaumeledone (Cephalopoda: Octopodidae) from the Southern Ocean. Antarctic Science 20, 245251.
Strugnell, J.M., Rogers, A.D., Prodohl, P.A., Collins, M.A. and Allcock, A.L. (2008b) The thermohaline expressway: the Southern Ocean as a centre of origin for deep-sea octopuses. Cladistics 24, 18.
Swofford, D.L. (1993) PAUP: Phylogenetic Analysis Using Parsimony. Chicago, Illinois: Natural History Survey, Champaign.
Vecchione, M., Collins, M.A. and Sweeney, M.J. (2002) Systematics, ecology and biology of cirrate octopods: Workshop report. Bulletin of Marine Science 71, 7994.
Vecchione, M., Piatkowski, U. and Allcock, A.L. (1998) Biology of the cirrate octopod Grimpoteuthis glacialis (Cephalopoda; Opisthoteuthidae) in the South Shetland Islands, Antarctica. South African Journal of Marine Science 20, 421428.
Villanueva, R. (1992) Continuous spawning in the cirrate octopods Opisthoteuthis agassizii and O. vossi: features of sexual maturation defining a reproductive strategy in cephalopods. Marine Biology 114, 265275.
Villanueva, R., Collins, M.A., Sanchez, P. and Voss, N.A. (2002) Systematics, distribution and biology of the cirrate octopods of the genus Opisthoteuthis (Mollusca, Cephalopoda) in the Atlantic Ocean, with description of two new species. Bulletin of Marine Science 71, 933985.
Voss, G.L. and Pearcy, W.G. (1990) Deep-water octopods (Mollusca: Cephalopoda) of the northeastern Pacific. Proceedings of the California Academy of Sciences 47, 4794.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of the Marine Biological Association of the United Kingdom
  • ISSN: 0025-3154
  • EISSN: 1469-7769
  • URL: /core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed