Oswaldella frigida Pena Cantero & Vervoort 2004
Oswaldella frigida Peña Cantero & Vervoort, 2004 (Figs 5, 16 E, 17E, 19E) Material examined. Australian Antarctic Expedition: Stn BTC 0 7 , Aurora Australis , 2 January 2010, 64.28 S, 97.12 E (Tressler Bank, off Queen Mary Coast), 708 m (Australian Antarctic Division, Tasmania, Australia, VII 09...
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ftzenodo:oai:zenodo.org:6107453 2024-09-15T17:41:43+00:00 Oswaldella frigida Pena Cantero & Vervoort 2004 Molinero, A. González Peña Cantero, A. L. 2015-12-31 https://doi.org/10.5281/zenodo.6107453 http://treatment.plazi.org/id/03C287C628037C1ED4F48B3628DE7CBE unknown Zenodo https://doi.org/10.11646/zootaxa.4052.4.1 http://zenodo.org/record/245887 http://publication.plazi.org/id/FFFBFFBE280B7C16D4638A112C127859 https://sibils.text-analytics.ch/search/collections/plazi/03C287C628037C1ED4F48B3628DE7CBE https://www.gbif.org/species/119646523 https://www.checklistbank.org/dataset/39326/taxon/03C287C628037C1ED4F48B3628DE7CBE.taxon https://doi.org/10.5281/zenodo.245892 https://doi.org/10.5281/zenodo.245903 https://doi.org/10.5281/zenodo.245895 http://zoobank.org/47EF6E9D-9064-4899-B3DD-276FF7C969EB https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6107452 https://doi.org/10.5281/zenodo.6107453 oai:zenodo.org:6107453 http://treatment.plazi.org/id/03C287C628037C1ED4F48B3628DE7CBE info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus, pp. 401-441 in Zootaxa, 4052(4), 409, (2015-12-31) Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella frigida info:eu-repo/semantics/other 2015 ftzenodo https://doi.org/10.5281/zenodo.610745310.11646/zootaxa.4052.4.110.5281/zenodo.24589210.5281/zenodo.24590310.5281/zenodo.24589510.5281/zenodo.6107452 2024-07-26T06:59:21Z Oswaldella frigida Peña Cantero & Vervoort, 2004 (Figs 5, 16 E, 17E, 19E) Material examined. Australian Antarctic Expedition: Stn BTC 0 7 , Aurora Australis , 2 January 2010, 64.28 S, 97.12 E (Tressler Bank, off Queen Mary Coast), 708 m (Australian Antarctic Division, Tasmania, Australia, VII 09/10 BTC 07). United States Antarctic Research Program (USARP): Stn 691/26 , Hero , 10 February 1969, 63°26’– 63°25’S, 62°15’– 62°14’W (south of Low Island, Antarctic Peninsula), 119–124 m (USNM 1003326). Description. Monosiphonic, unbranched stems, up to 75 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 45°. Cauline apophyses with one to four nematophores, one or two axillary ones (Fig. 5 B–C), each emerging through bare hole in perisarc, and up to two extra nematophores, each emerging through “mamelon”. Hydrocladia typically with asymmetrical branching, with main primary hydrocladium giving rise to several second-order hydrocladia (Fig. 5 A). First hydrocladial internode bifurcated, with two unequal prongs (Fig. 5 A–B). Mesial-inferior nematophore emerging from strongly marked swelling at proximal third of internode (Fig. 5 E–F); without nematotheca (Fig. 5 D–F). Hydrotheca placed on middle of internode or at its proximal third (Fig. 5 A, D– F). Hydrotheca low, about as high as wide. Abcauline hydrothecal wall straight or slightly convex. Rim of hydrothecal aperture typically uneven, strongly depressed frontally (Fig. 5 D, F), but even at proximal internodes (Fig. 5 A). Gonothecae elongated, with large subterminal aperture and diaphragm at basal third. Remarks. The material examined differs from that described by Peña Cantero & Vervoort (2004: 830) in having a single axillary nematophore, whereas two were described by those authors, who also stated that one, occasionally two ‘mamelons’, were also present. In the material here studied we have observed one ‘mamelon’ or none. This fact points, again, to the existence of some variability in the number of nematophores in the cauline ... Other/Unknown Material Antarc* Antarctic Antarctic Peninsula aurora australis Australian Antarctic Division Low Island Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella frigida |
spellingShingle |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella frigida Molinero, A. González Peña Cantero, A. L. Oswaldella frigida Pena Cantero & Vervoort 2004 |
topic_facet |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella frigida |
description |
Oswaldella frigida Peña Cantero & Vervoort, 2004 (Figs 5, 16 E, 17E, 19E) Material examined. Australian Antarctic Expedition: Stn BTC 0 7 , Aurora Australis , 2 January 2010, 64.28 S, 97.12 E (Tressler Bank, off Queen Mary Coast), 708 m (Australian Antarctic Division, Tasmania, Australia, VII 09/10 BTC 07). United States Antarctic Research Program (USARP): Stn 691/26 , Hero , 10 February 1969, 63°26’– 63°25’S, 62°15’– 62°14’W (south of Low Island, Antarctic Peninsula), 119–124 m (USNM 1003326). Description. Monosiphonic, unbranched stems, up to 75 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 45°. Cauline apophyses with one to four nematophores, one or two axillary ones (Fig. 5 B–C), each emerging through bare hole in perisarc, and up to two extra nematophores, each emerging through “mamelon”. Hydrocladia typically with asymmetrical branching, with main primary hydrocladium giving rise to several second-order hydrocladia (Fig. 5 A). First hydrocladial internode bifurcated, with two unequal prongs (Fig. 5 A–B). Mesial-inferior nematophore emerging from strongly marked swelling at proximal third of internode (Fig. 5 E–F); without nematotheca (Fig. 5 D–F). Hydrotheca placed on middle of internode or at its proximal third (Fig. 5 A, D– F). Hydrotheca low, about as high as wide. Abcauline hydrothecal wall straight or slightly convex. Rim of hydrothecal aperture typically uneven, strongly depressed frontally (Fig. 5 D, F), but even at proximal internodes (Fig. 5 A). Gonothecae elongated, with large subterminal aperture and diaphragm at basal third. Remarks. The material examined differs from that described by Peña Cantero & Vervoort (2004: 830) in having a single axillary nematophore, whereas two were described by those authors, who also stated that one, occasionally two ‘mamelons’, were also present. In the material here studied we have observed one ‘mamelon’ or none. This fact points, again, to the existence of some variability in the number of nematophores in the cauline ... |
format |
Other/Unknown Material |
author |
Molinero, A. González Peña Cantero, A. L. |
author_facet |
Molinero, A. González Peña Cantero, A. L. |
author_sort |
Molinero, A. González |
title |
Oswaldella frigida Pena Cantero & Vervoort 2004 |
title_short |
Oswaldella frigida Pena Cantero & Vervoort 2004 |
title_full |
Oswaldella frigida Pena Cantero & Vervoort 2004 |
title_fullStr |
Oswaldella frigida Pena Cantero & Vervoort 2004 |
title_full_unstemmed |
Oswaldella frigida Pena Cantero & Vervoort 2004 |
title_sort |
oswaldella frigida pena cantero & vervoort 2004 |
publisher |
Zenodo |
publishDate |
2015 |
url |
https://doi.org/10.5281/zenodo.6107453 http://treatment.plazi.org/id/03C287C628037C1ED4F48B3628DE7CBE |
genre |
Antarc* Antarctic Antarctic Peninsula aurora australis Australian Antarctic Division Low Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula aurora australis Australian Antarctic Division Low Island |
op_source |
SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus, pp. 401-441 in Zootaxa, 4052(4), 409, (2015-12-31) |
op_relation |
https://doi.org/10.11646/zootaxa.4052.4.1 http://zenodo.org/record/245887 http://publication.plazi.org/id/FFFBFFBE280B7C16D4638A112C127859 https://sibils.text-analytics.ch/search/collections/plazi/03C287C628037C1ED4F48B3628DE7CBE https://www.gbif.org/species/119646523 https://www.checklistbank.org/dataset/39326/taxon/03C287C628037C1ED4F48B3628DE7CBE.taxon https://doi.org/10.5281/zenodo.245892 https://doi.org/10.5281/zenodo.245903 https://doi.org/10.5281/zenodo.245895 http://zoobank.org/47EF6E9D-9064-4899-B3DD-276FF7C969EB https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6107452 https://doi.org/10.5281/zenodo.6107453 oai:zenodo.org:6107453 http://treatment.plazi.org/id/03C287C628037C1ED4F48B3628DE7CBE |
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.610745310.11646/zootaxa.4052.4.110.5281/zenodo.24589210.5281/zenodo.24590310.5281/zenodo.24589510.5281/zenodo.6107452 |
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1810487963403943936 |