Copytus elongatus Benson 1964
Copytus elongatus Benson, 1964. While C. laevata (senior synonym of C. caligula ) is rather thin-shelled, another Antarctic species Copytus elongatus Benson, 1964, is more robust. It is smaller (l = 0.79–0.83 mm) than C. laevata (l = 0.94–1.02 mm), but also has vestibulae in both ends, and few short...
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Online Access: | https://doi.org/10.5281/zenodo.5665881 http://treatment.plazi.org/id/8C0B878F3925577E49CCFE54FCD4FBFD |
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ftzenodo:oai:zenodo.org:5665881 2024-09-15T17:35:00+00:00 Copytus elongatus Benson 1964 Coimbra, João Carlos Bergue, Cristianini Trescastro Ramos, Maria Inês Feijó 2020-01-29 https://doi.org/10.5281/zenodo.5665881 http://treatment.plazi.org/id/8C0B878F3925577E49CCFE54FCD4FBFD unknown Zenodo https://doi.org/10.11646/zootaxa.4729.2.2 http://zenodo.org/record/3632249 http://publication.plazi.org/id/7032FFF739235778495BFF89FFE0FFA6 https://sibils.text-analytics.ch/search/collections/plazi/8C0B878F3925577E49CCFE54FCD4FBFD https://www.gbif.org/species/161926166 https://www.checklistbank.org/dataset/24222/taxon/8C0B878F3925577E49CCFE54FCD4FBFD.taxon http://zoobank.org/EC42F789-C869-4551-998E-CC819044C775 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5665880 https://doi.org/10.5281/zenodo.5665881 oai:zenodo.org:5665881 http://treatment.plazi.org/id/8C0B878F3925577E49CCFE54FCD4FBFD info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Is Copytus Skogsberg, 1939 (Crustacea: Ostracoda) a neocytherideid? With description of a new family and two new species, pp. 177-194 in Zootaxa, 4729(2), 183, (2020-01-29) Biodiversity Taxonomy Animalia Arthropoda Ostracoda Podocopida Neocytherideidae Copytus Copytus elongatus info:eu-repo/semantics/other 2020 ftzenodo https://doi.org/10.5281/zenodo.566588110.11646/zootaxa.4729.2.210.5281/zenodo.5665880 2024-07-26T19:18:50Z Copytus elongatus Benson, 1964. While C. laevata (senior synonym of C. caligula ) is rather thin-shelled, another Antarctic species Copytus elongatus Benson, 1964, is more robust. It is smaller (l = 0.79–0.83 mm) than C. laevata (l = 0.94–1.02 mm), but also has vestibulae in both ends, and few short marginal pore canals, although numerous are false. Its hinge is similarly adont, but more robust, and its outline is rounded anteriorly and posteriorly. The adductor muscles leave an obscure small cluster of scars; the frontal scar is not visible in this species. Apart from its stronger shell and more robust hinge, Benson (1964, p. 17) stated that C. elongatus differs from C. laevata by its “narrower-mouthed, deep anterior vestibule and shallower posterior vestibule.” Neale (1967, p. 28) separated these two species mainly on their length: height ratio. He demonstrated that in his material of C. elongatus and Benson’s type material the height of the specimens varied between about 41 and 43% of the length compared with about 33% for Skogsberg’s C. caligula from South Georgia, 33 to 39% for Brady’s type material of C. laevata from Heard Island and 39% for Chapman’s (1916) Quaternary material from the Drygalski Glacier (Antarctic Peninsula). Neale’s photographs (pl. I, figs q, q’, r, r’) emphasised the very straight and parallel dorsal and ventral margins of C. elongatus . Benson’s species is recorded widely throughout Antarctic waters, the most northerly record being in the South Orkney Islands. Benson (1964) and Neale (1967) record it from McMurdo Sound and Halley Bay, respectively, and Hartmann (1997) from a number of localities including the Bransfield Strait, Elephant Island, King George Island, Adelaide Island and Faraday Station. Hartmann (1997, p. 75) gave a synonymy of the species, which, however, excluded the record by D’Onofrio & Pugliese (1989 apud Hartmann 1997) from the Ross Sea. Published as part of Coimbra, João Carlos, Bergue, Cristianini Trescastro & Ramos, Maria Inês Feijó, 2020, Is Copytus ... Other/Unknown Material Adelaide Island Antarc* Antarctic Antarctic Peninsula Bransfield Strait Drygalski Glacier Elephant Island Heard Island King George Island McMurdo Sound Ross Sea South Orkney Islands Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Ostracoda Podocopida Neocytherideidae Copytus Copytus elongatus |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Ostracoda Podocopida Neocytherideidae Copytus Copytus elongatus Coimbra, João Carlos Bergue, Cristianini Trescastro Ramos, Maria Inês Feijó Copytus elongatus Benson 1964 |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Ostracoda Podocopida Neocytherideidae Copytus Copytus elongatus |
description |
Copytus elongatus Benson, 1964. While C. laevata (senior synonym of C. caligula ) is rather thin-shelled, another Antarctic species Copytus elongatus Benson, 1964, is more robust. It is smaller (l = 0.79–0.83 mm) than C. laevata (l = 0.94–1.02 mm), but also has vestibulae in both ends, and few short marginal pore canals, although numerous are false. Its hinge is similarly adont, but more robust, and its outline is rounded anteriorly and posteriorly. The adductor muscles leave an obscure small cluster of scars; the frontal scar is not visible in this species. Apart from its stronger shell and more robust hinge, Benson (1964, p. 17) stated that C. elongatus differs from C. laevata by its “narrower-mouthed, deep anterior vestibule and shallower posterior vestibule.” Neale (1967, p. 28) separated these two species mainly on their length: height ratio. He demonstrated that in his material of C. elongatus and Benson’s type material the height of the specimens varied between about 41 and 43% of the length compared with about 33% for Skogsberg’s C. caligula from South Georgia, 33 to 39% for Brady’s type material of C. laevata from Heard Island and 39% for Chapman’s (1916) Quaternary material from the Drygalski Glacier (Antarctic Peninsula). Neale’s photographs (pl. I, figs q, q’, r, r’) emphasised the very straight and parallel dorsal and ventral margins of C. elongatus . Benson’s species is recorded widely throughout Antarctic waters, the most northerly record being in the South Orkney Islands. Benson (1964) and Neale (1967) record it from McMurdo Sound and Halley Bay, respectively, and Hartmann (1997) from a number of localities including the Bransfield Strait, Elephant Island, King George Island, Adelaide Island and Faraday Station. Hartmann (1997, p. 75) gave a synonymy of the species, which, however, excluded the record by D’Onofrio & Pugliese (1989 apud Hartmann 1997) from the Ross Sea. Published as part of Coimbra, João Carlos, Bergue, Cristianini Trescastro & Ramos, Maria Inês Feijó, 2020, Is Copytus ... |
format |
Other/Unknown Material |
author |
Coimbra, João Carlos Bergue, Cristianini Trescastro Ramos, Maria Inês Feijó |
author_facet |
Coimbra, João Carlos Bergue, Cristianini Trescastro Ramos, Maria Inês Feijó |
author_sort |
Coimbra, João Carlos |
title |
Copytus elongatus Benson 1964 |
title_short |
Copytus elongatus Benson 1964 |
title_full |
Copytus elongatus Benson 1964 |
title_fullStr |
Copytus elongatus Benson 1964 |
title_full_unstemmed |
Copytus elongatus Benson 1964 |
title_sort |
copytus elongatus benson 1964 |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://doi.org/10.5281/zenodo.5665881 http://treatment.plazi.org/id/8C0B878F3925577E49CCFE54FCD4FBFD |
genre |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Bransfield Strait Drygalski Glacier Elephant Island Heard Island King George Island McMurdo Sound Ross Sea South Orkney Islands |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Bransfield Strait Drygalski Glacier Elephant Island Heard Island King George Island McMurdo Sound Ross Sea South Orkney Islands |
op_source |
Is Copytus Skogsberg, 1939 (Crustacea: Ostracoda) a neocytherideid? With description of a new family and two new species, pp. 177-194 in Zootaxa, 4729(2), 183, (2020-01-29) |
op_relation |
https://doi.org/10.11646/zootaxa.4729.2.2 http://zenodo.org/record/3632249 http://publication.plazi.org/id/7032FFF739235778495BFF89FFE0FFA6 https://sibils.text-analytics.ch/search/collections/plazi/8C0B878F3925577E49CCFE54FCD4FBFD https://www.gbif.org/species/161926166 https://www.checklistbank.org/dataset/24222/taxon/8C0B878F3925577E49CCFE54FCD4FBFD.taxon http://zoobank.org/EC42F789-C869-4551-998E-CC819044C775 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5665880 https://doi.org/10.5281/zenodo.5665881 oai:zenodo.org:5665881 http://treatment.plazi.org/id/8C0B878F3925577E49CCFE54FCD4FBFD |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.566588110.11646/zootaxa.4729.2.210.5281/zenodo.5665880 |
_version_ |
1810436436179025920 |