Oswaldella stepanjantsae El Beshbeeshy 1991
Oswaldella stepanjantsae El Beshbeeshy, 1991 (Figs 13, 16 M, 18 E, 20 D) Material examined. United States Antarctic Research Program (USARP): Stn 32 / 2121, Eltanin, 12 February 1968, 72° 27 ’– 72 ° 26 ’S, 177 °04’– 177 ° 12 ’E (off Cape Adare, Ross Sea), 1883–1890 m (USNM 1003367); Stn 691 / 26, He...
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ftzenodo:oai:zenodo.org:6107480 2023-05-15T13:57:00+02:00 Oswaldella stepanjantsae El Beshbeeshy 1991 Molinero, A. González Peña Cantero, A. L. 2015-12-31 https://zenodo.org/record/6107480 https://doi.org/10.5281/zenodo.6107480 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03C287C628197C03D4F48E972EC0788D doi:10.11646/zootaxa.4052.4.1 http://zenodo.org/record/245887 http://publication.plazi.org/id/FFFBFFBE280B7C16D4638A112C127859 doi:10.5281/zenodo.245900 doi:10.5281/zenodo.245903 http://zoobank.org/47EF6E9D-9064-4899-B3DD-276FF7C969EB doi:10.5281/zenodo.6107479 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6107480 https://doi.org/10.5281/zenodo.6107480 oai:zenodo.org:6107480 info:eu-repo/semantics/openAccess 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) 419-422 Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella stepanjantsae info:eu-repo/semantics/other publication-taxonomictreatment 2015 ftzenodo https://doi.org/10.5281/zenodo.610748010.11646/zootaxa.4052.4.110.5281/zenodo.24590010.5281/zenodo.24590310.5281/zenodo.6107479 2023-03-10T13:23:42Z Oswaldella stepanjantsae El Beshbeeshy, 1991 (Figs 13, 16 M, 18 E, 20 D) Material examined. United States Antarctic Research Program (USARP): Stn 32 / 2121, Eltanin, 12 February 1968, 72° 27 ’– 72 ° 26 ’S, 177 °04’– 177 ° 12 ’E (off Cape Adare, Ross Sea), 1883–1890 m (USNM 1003367); 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 1003370); Stn 833 /018- 1, Hero, 1 April 1983, 62°41.50’S, 56 °01.75’W (off Elephant Island, South Shetland Islands), 210–240 m (USNM 1003372). New Zealand Antarctic Expedition TAN0802: Stn 17, Tangaroa, 9 February 2008, 73.1245°S, 174.3205°E (Ross Sea, Cape Adare), 321 m (NIWA 35451). Description. Polysiphonic, branched stems, up to 500 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 45 °. Cauline apophyses with two to six axillary nematophores, each emerging through perisarc hole (Fig. 13 B–C), frequently with very short collar-shaped nematotheca (Fig. 13 B), and with up to two extra nematophores, each emerging through ‘mamelon’ (Fig. 13 B–C). Hydrocladia much branched (Fig. 13 A), with up to fourth-order hydrocladia. First hydrocladial internode bifurcated, with two similar prongs (Fig. 13 A). Mesial inferior nematophore emerging from marked swelling at proximal third of internode (Fig. 13 D–E); with rudimentary, nail-shaped nematotheca (Fig. 13 F–G). Hydrotheca elongate, placed on middle of internode. Abcauline wall roughly straight. Adcauline wall mostly adnate (Fig. 13 D– E). Hydrothecal aperture circular, perpendicular to longitudinal axis of internode (Fig. 13 E); rim even. Gonothecae fusiform, with sub-terminal aperture (Fig. 13 H). Remarks. Oswaldella stepanjantsae is remarkable for the high variability in the number of axillary nematophores in the cauline apophyses. Peña Cantero & Vervoort (2004) reported from two to six. Although we have only observed four, the structure of the central nematophores in some of the cauline apophyses examined seems ... Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Elephant Island Low Island Ross Sea South Shetland Islands Zenodo Antarctic Antarctic Peninsula Ross Sea South Shetland Islands New Zealand Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) Adare ENVELOPE(170.233,170.233,-71.283,-71.283) Cape Adare ENVELOPE(175.000,175.000,-71.000,-71.000) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella stepanjantsae |
spellingShingle |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella stepanjantsae Molinero, A. González Peña Cantero, A. L. Oswaldella stepanjantsae El Beshbeeshy 1991 |
topic_facet |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Kirchenpaueriidae Oswaldella Oswaldella stepanjantsae |
description |
Oswaldella stepanjantsae El Beshbeeshy, 1991 (Figs 13, 16 M, 18 E, 20 D) Material examined. United States Antarctic Research Program (USARP): Stn 32 / 2121, Eltanin, 12 February 1968, 72° 27 ’– 72 ° 26 ’S, 177 °04’– 177 ° 12 ’E (off Cape Adare, Ross Sea), 1883–1890 m (USNM 1003367); 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 1003370); Stn 833 /018- 1, Hero, 1 April 1983, 62°41.50’S, 56 °01.75’W (off Elephant Island, South Shetland Islands), 210–240 m (USNM 1003372). New Zealand Antarctic Expedition TAN0802: Stn 17, Tangaroa, 9 February 2008, 73.1245°S, 174.3205°E (Ross Sea, Cape Adare), 321 m (NIWA 35451). Description. Polysiphonic, branched stems, up to 500 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 45 °. Cauline apophyses with two to six axillary nematophores, each emerging through perisarc hole (Fig. 13 B–C), frequently with very short collar-shaped nematotheca (Fig. 13 B), and with up to two extra nematophores, each emerging through ‘mamelon’ (Fig. 13 B–C). Hydrocladia much branched (Fig. 13 A), with up to fourth-order hydrocladia. First hydrocladial internode bifurcated, with two similar prongs (Fig. 13 A). Mesial inferior nematophore emerging from marked swelling at proximal third of internode (Fig. 13 D–E); with rudimentary, nail-shaped nematotheca (Fig. 13 F–G). Hydrotheca elongate, placed on middle of internode. Abcauline wall roughly straight. Adcauline wall mostly adnate (Fig. 13 D– E). Hydrothecal aperture circular, perpendicular to longitudinal axis of internode (Fig. 13 E); rim even. Gonothecae fusiform, with sub-terminal aperture (Fig. 13 H). Remarks. Oswaldella stepanjantsae is remarkable for the high variability in the number of axillary nematophores in the cauline apophyses. Peña Cantero & Vervoort (2004) reported from two to six. Although we have only observed four, the structure of the central nematophores in some of the cauline apophyses examined seems ... |
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 stepanjantsae El Beshbeeshy 1991 |
title_short |
Oswaldella stepanjantsae El Beshbeeshy 1991 |
title_full |
Oswaldella stepanjantsae El Beshbeeshy 1991 |
title_fullStr |
Oswaldella stepanjantsae El Beshbeeshy 1991 |
title_full_unstemmed |
Oswaldella stepanjantsae El Beshbeeshy 1991 |
title_sort |
oswaldella stepanjantsae el beshbeeshy 1991 |
publishDate |
2015 |
url |
https://zenodo.org/record/6107480 https://doi.org/10.5281/zenodo.6107480 |
long_lat |
ENVELOPE(-55.184,-55.184,-61.085,-61.085) ENVELOPE(170.233,170.233,-71.283,-71.283) ENVELOPE(175.000,175.000,-71.000,-71.000) |
geographic |
Antarctic Antarctic Peninsula Ross Sea South Shetland Islands New Zealand Elephant Island Adare Cape Adare |
geographic_facet |
Antarctic Antarctic Peninsula Ross Sea South Shetland Islands New Zealand Elephant Island Adare Cape Adare |
genre |
Antarc* Antarctic Antarctic Peninsula Elephant Island Low Island Ross Sea South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Elephant Island Low Island Ross Sea South Shetland Islands |
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) 419-422 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03C287C628197C03D4F48E972EC0788D doi:10.11646/zootaxa.4052.4.1 http://zenodo.org/record/245887 http://publication.plazi.org/id/FFFBFFBE280B7C16D4638A112C127859 doi:10.5281/zenodo.245900 doi:10.5281/zenodo.245903 http://zoobank.org/47EF6E9D-9064-4899-B3DD-276FF7C969EB doi:10.5281/zenodo.6107479 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6107480 https://doi.org/10.5281/zenodo.6107480 oai:zenodo.org:6107480 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.610748010.11646/zootaxa.4052.4.110.5281/zenodo.24590010.5281/zenodo.24590310.5281/zenodo.6107479 |
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1766264591839395840 |