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Golikov AV, Gudmundsson G, Blicher ME, Jørgensen LL, Korneeva EI, Olafsdottir SH, Shagimardanova EI, Shigapova LH, Zakharov DV, Zimina OL, Sabirov RM. A review of the genus Muusoctopus (Cephalopoda: Octopoda) from Arctic waters. ZOOLOGICAL LETTERS 2023; 9:21. [PMID: 37974237 PMCID: PMC10655294 DOI: 10.1186/s40851-023-00220-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 09/20/2023] [Indexed: 11/19/2023]
Abstract
We report two Arctic species of incirrate octopods new to science. One is formally described here as Muusoctopus aegir Golikov, Gudmundsson & Sabirov sp. nov. while the other, Muusoctopus sp. 1, is not formally described due to a limited number of samples (all are immature individuals). These two species differ from each other, and from other Muusoctopus, especially in: 1) absence of stylets (in M. aegir sp. nov.); 2) proportions of mantle and head; 3) funnel organ morphology (W-shaped with medial and marginal limbs of equal length in M. aegir sp. nov., or medial are slightly longer; V V-shaped with medial limbs slightly longer and broader than marginal in Muusoctopus sp. 1); 4) sucker and gill lamellae counts; 5) relative arm length and sucker diameter; and 6) male reproductive system relative size and morphology. Species of Muusoctopus now comprise four of 12 known Arctic cephalopods. Additionally, this study provides: a) new data on the morphology and reproductive biology of M. johnsonianus and M. sibiricus, and a diagnosis of M. sibiricus; b) the equations to estimate mantle length and body mass from beak measurements of M. aegir sp. nov. and M. johnsonianus; c) a cytochrome c oxidase subunit I gene barcode for M. sibiricus; d) new data on the ecology and distribution of all studied species; and e) a data table for the identification of northern North Atlantic and Arctic species of Muusoctopus.
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Affiliation(s)
- Alexey V Golikov
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Dusternbrooker Weg 20, 24105, Kiel, Germany.
| | - Gudmundur Gudmundsson
- Collections and Systematics Department, Icelandic Institute of Natural History, Urriðaholtsstræti 6-8, 210, Gardabaer, Iceland
| | - Martin E Blicher
- NIRAS A/S, Ceres Allé 3, 8000, Aarhus, Denmark
- Greenland Institute of Natural Resources, Greenland Climate Research Centre, Kivioq 2, 3900, Nuuk, Greenland
| | - Lis L Jørgensen
- Institute of Marine Research, Tromsø Department, P.O. Box 6606 Langnes, 9294, Tromsø, Norway
| | - Ekaterina I Korneeva
- Department of Zoology, Kazan Federal University, Kremlyovskaya Str. 18, 420008, Kazan, Russia
| | - Steinunn H Olafsdottir
- Marine and Freshwater Research Institute, Demersal Division, Fornubúðir 5, 220, Hafnarfjordur, Iceland
| | - Elena I Shagimardanova
- Kazan Federal University, Extreme Biology Laboratory, Volkova Str. 18, 420021, Kazan, Russia
| | - Leyla H Shigapova
- Kazan Federal University, Extreme Biology Laboratory, Volkova Str. 18, 420021, Kazan, Russia
| | - Denis V Zakharov
- Zoological Institute of Russian Academy of Sciences, Laboratory of Marine Research, Universitetskaya Nab. 1, 199034, Sankt-Petersburg, Russia
| | - Olga L Zimina
- Zoological Institute of Russian Academy of Sciences, Laboratory of Marine Research, Universitetskaya Nab. 1, 199034, Sankt-Petersburg, Russia
- Murmansk Marine Biological Institute, Laboratory of Zoobenthos, Vladimirskaya Str. 17, 183010, Murmansk, Russia
| | - Rushan M Sabirov
- Department of Zoology, Kazan Federal University, Kremlyovskaya Str. 18, 420008, Kazan, Russia
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Sanchez G, Setiamarga DH, Tuanapaya S, Tongtherm K, Winkelmann IE, Schmidbaur H, Umino T, Albertin C, Allcock L, Perales-Raya C, Gleadall I, Strugnell JM, Simakov O, Nabhitabhata J. Genus-level phylogeny of cephalopods using molecular markers: current status and problematic areas. PeerJ 2018; 6:e4331. [PMID: 29456885 PMCID: PMC5813590 DOI: 10.7717/peerj.4331] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 01/16/2018] [Indexed: 11/20/2022] Open
Abstract
Comprising more than 800 extant species, the class Cephalopoda (octopuses, squid, cuttlefish, and nautiluses) is a fascinating group of marine conchiferan mollusks. Recently, the first cephalopod genome (of Octopus bimaculoides) was published, providing a genomic framework, which will enable more detailed investigations of cephalopod characteristics, including developmental, morphological, and behavioural traits. Meanwhile, a robust phylogeny of the members of the subclass Coleoidea (octopuses, squid, cuttlefishes) is crucial for comparative and evolutionary studies aiming to investigate the group's traits and innovations, but such a phylogeny has proven very challenging to obtain. Here, we present the results of phylogenetic inference at the genus level using mitochondrial and nuclear marker sequences available from public databases. Topologies are presented which show support for (1) the monophyly of the two main superorders, Octobrachia and Decabrachia, and (2) some of the interrelationships at the family level. We have mapped morphological characters onto the tree and conducted molecular dating analyses, obtaining congruent results with previous estimates of divergence in major lineages. Our study also identifies unresolved phylogenetic relationships within the cephalopod phylogeny and insufficient taxonomic sampling among squids excluding the Loliginidae in the Decabrachia and within the Order Cirromorphida in the Octobrachia. Genomic and transcriptomic resources should enable resolution of these issues in the relatively near future. We provide our alignment as an open access resource, to allow other researchers to reconstruct phylogenetic trees upon this work in the future.
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Affiliation(s)
- Gustavo Sanchez
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Molecular Genetics Unit, Okinawa Institute of Science and Technology, Okinawa, Japan
| | - Davin H.E. Setiamarga
- Department of Applied Chemistry and Biochemistry, National Institute of Technology—Wakayama College, Gobo City, Wakayama, Japan
- The University Museum, The University of Tokyo, Tokyo, Japan
| | | | | | - Inger E. Winkelmann
- Section for Evolutionary Genomics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Hannah Schmidbaur
- Department of Molecular Evolution and Development, University of Vienna, Vienna, Austria
| | - Tetsuya Umino
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Caroline Albertin
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL, United States of America
| | - Louise Allcock
- Department of Zoology, Martin Ryan Marine Science Institute, National University of Ireland, Galway, Ireland
| | - Catalina Perales-Raya
- Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Santa Cruz de Tenerife, Spain
| | - Ian Gleadall
- Graduate School of Agricultural Science, Tohoku University, Sendai, Tohoku, Japan
| | - Jan M. Strugnell
- Marine Biology & Aquaculture, James Cook University, Townsville, Queensland, Australia
| | - Oleg Simakov
- Molecular Genetics Unit, Okinawa Institute of Science and Technology, Okinawa, Japan
- Department of Molecular Evolution and Development, University of Vienna, Vienna, Austria
| | - Jaruwat Nabhitabhata
- Excellence Centre for Biodiversity of Peninsular Thailand, Prince of Songkla University, Songkhla, Thailand
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Ibáñez CM, Pardo‐Gandarillas MC, Peña F, Gleadall IG, Poulin E, Sellanes J. Phylogeny and biogeography of
Muusoctopus
(Cephalopoda: Enteroctopodidae). ZOOL SCR 2016. [DOI: 10.1111/zsc.12171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Christian M. Ibáñez
- Departamento de Ecología y Biodiversidad Facultad de Ecología y Recursos Naturales Universidad Andres Bello República 440 Santiago Chile
| | - María C. Pardo‐Gandarillas
- Departamento de Ciencias Ecológicas Facultad de Ciencias Universidad de Chile Las Palmeras 3425 Ñuñoa Santiago Chile
| | - Fabiola Peña
- Faculty of Life Sciences Utrecht University Utrecht The Netherlands
| | - Ian G. Gleadall
- International Fisheries Science Unit Graduate School of Agriculture Tohoku University 1‐1 Amamiya Sendai 981‐8555 Japan
| | - Elie Poulin
- Departamento de Ciencias Ecológicas Facultad de Ciencias Universidad de Chile Las Palmeras 3425 Ñuñoa Santiago Chile
| | - Javier Sellanes
- Departamento de Biología Marina & Núcleo Milenio ‘Ecología y Manejo SustentableIslas Oceánicas’ Facultad de Ciencias del Mar Universidad Católica del Norte Larrondo 1281 CoquimboChile
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Gleadall IG, Guerrero-Kommritz J, Hochberg FG, Laptikhovsky VV. The inkless octopuses (Cephalopoda: Octopodidae) of the southwest Atlantic. Zoolog Sci 2010; 27:528-53. [PMID: 20528161 DOI: 10.2108/zsj.27.528] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Three inkless octopodids are described from the continental shelf off southeastern South America. These octopuses are a non-commercial by-catch in the Falkland Islands fishery. Muusoctopus eureka (Robson, 1929) is one of two common inkless octopuses and is of medium size, with orange-pink skin and a distinctive pattern of irregular dark markings, interspersed with white spots visible only in living or freshly dead specimens. The second common inkless octopus is M. longibrachus akambei, a new subspecies of the Chilean species Muusoctopus longibrachus ( Ibáñez, Sepúlveda and Chong, 2006 ). It has slender arms and is much larger at full maturity than M. eureka. It is a plain orange color when alive, pinkish cream when preserved. Muusoctopus bizikovi, sp. nov., is a smaller, rarer species, colored wine-red whether alive or preserved, and has a vestigial ink duct between the digestive gland and the anus. Relations with other species are discussed. This group of octopuses has often been associated with the genus Benthoctopus Grimpe, 1921 , which is a junior synonym of Bathypolypus Grimpe (a genus of small species characterized by much shorter arms and males with a robust copulatory organ bearing transverse lamellae). It is argued that the misleading characterization of the so-called Benthoctopus group of species as "smooth skinned" is based upon the artefactual appearance of specimens fixed and preserved suboptimally following a detrimental freeze-thaw cycle of fisheries material previously frozen while at sea.
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Affiliation(s)
- Ian G Gleadall
- Falkland Islands Government Fisheries Department, PO Box 598, Stanley FIOQ 1ZZ, Falkland Islands.
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