Bimeria corynopsis Vanhoffen 1910
Bimeria corynopsis Vanhöffen, 1910 (Fig. 2) Bimeria corynopsis —Peña Cantero, 2015: 370–373, figs 1A, 2A–B, 3A–B (synonymy); 2017: 9, fig. 2A–B. Material examined. 48EV194 , colonies without polyps, with gonophores, on Staurotheca nonscripta Peña Cantero, Svoboda & Vervoort, 1997 and Symplectosc...
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ftzenodo:oai:zenodo.org:5978773 2023-05-15T14:00:14+02:00 Bimeria corynopsis Vanhoffen 1910 Peña Cantero, Álvaro L. Marzal, Marina Fresneda 2018-06-26 https://zenodo.org/record/5978773 https://doi.org/10.5281/zenodo.5978773 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03AC2855FF89FFB7E7FE78D46ADB2F03 doi:10.11646/zootaxa.4441.1.7 http://zenodo.org/record/1301927 http://publication.plazi.org/id/FF95502DFF8BFFB4E769790B69262D0D doi:10.5281/zenodo.1301931 http://zoobank.org/2D48BC12-329C-4476-BF43-4648B4807E3B doi:10.5281/zenodo.5978772 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5978773 https://doi.org/10.5281/zenodo.5978773 oai:zenodo.org:5978773 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica), pp. 121-136 in Zootaxa 4441(1) 123-124 Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Hydroida Bougainvilliidae Bimeria Bimeria corynopsis info:eu-repo/semantics/other publication-taxonomictreatment 2018 ftzenodo https://doi.org/10.5281/zenodo.597877310.11646/zootaxa.4441.1.710.5281/zenodo.130193110.5281/zenodo.5978772 2023-03-10T15:37:53Z Bimeria corynopsis Vanhöffen, 1910 (Fig. 2) Bimeria corynopsis —Peña Cantero, 2015: 370–373, figs 1A, 2A–B, 3A–B (synonymy); 2017: 9, fig. 2A–B. Material examined. 48EV194 , colonies without polyps, with gonophores, on Staurotheca nonscripta Peña Cantero, Svoboda & Vervoort, 1997 and Symplectoscyphus glacialis (Jäderholm, 1904) (IK–2012–10435), and on Staurotheca nonscripta (IK–2009–0300). Description. Colonies with well-developed stems. Branching characteristic; branches roughly originating at right angle from stem and later curving upwards until becoming roughly parallel to stem. No polyps present. Gonophores at the end on annulated pedicels (Fig. 2A–B), globular, 230 µm high and 200 µm in maXimum diameter, covered by a thin layer of perisarc (Fig. 2C–D). Cnidome (in µm): heteronemes (not seen discharged), range 7.0–9.4 X 3.0–5.7, mean 8.5±0.7 X 3.9±1.1 (n=11). Remarks. The colonies have stems much more developed than previously reported, with up to 15 polyps. Even when the colonies are deprived of polyps, it is possible to recognize the species by the characteristic colony structure. The present material also agrees in the cnidome with previous findings. Peña Cantero (2014b) observed discharged nematocysts in material from the Davis Sea, confirming they are microbasic euryteles. The gonosome of the species was previously unknown. The complete absence of polyps seems to indicate a complete investment in reproduction. The species has been reported a few times, always with many polyps, but without signs of reproductive structures. Ecology and distribution. Present material collected at depths between 325 and 409 m, epibiotic on Staurotheca nonscripta and Symplectoscyphus glacialis. Gonophores present in December. Uncommon species endemic to East Antarctica (Peña Cantero 2014b), so far only found three times, twice in the Davis Sea (Vanhöffen 1910; Peña Cantero 2014b) and another in the Ross Sea (Peña Cantero 2017). Published as part of Peña Cantero, Álvaro L. & Marzal, Marina Fresneda, 2018, Benthic ... Other/Unknown Material Antarc* Antarctica Davis Sea East Antarctica Ross Sea Zenodo Davis Sea ENVELOPE(93.500,93.500,-66.000,-66.000) East Antarctica Ross Sea |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Hydroida Bougainvilliidae Bimeria Bimeria corynopsis |
spellingShingle |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Hydroida Bougainvilliidae Bimeria Bimeria corynopsis Peña Cantero, Álvaro L. Marzal, Marina Fresneda Bimeria corynopsis Vanhoffen 1910 |
topic_facet |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Hydroida Bougainvilliidae Bimeria Bimeria corynopsis |
description |
Bimeria corynopsis Vanhöffen, 1910 (Fig. 2) Bimeria corynopsis —Peña Cantero, 2015: 370–373, figs 1A, 2A–B, 3A–B (synonymy); 2017: 9, fig. 2A–B. Material examined. 48EV194 , colonies without polyps, with gonophores, on Staurotheca nonscripta Peña Cantero, Svoboda & Vervoort, 1997 and Symplectoscyphus glacialis (Jäderholm, 1904) (IK–2012–10435), and on Staurotheca nonscripta (IK–2009–0300). Description. Colonies with well-developed stems. Branching characteristic; branches roughly originating at right angle from stem and later curving upwards until becoming roughly parallel to stem. No polyps present. Gonophores at the end on annulated pedicels (Fig. 2A–B), globular, 230 µm high and 200 µm in maXimum diameter, covered by a thin layer of perisarc (Fig. 2C–D). Cnidome (in µm): heteronemes (not seen discharged), range 7.0–9.4 X 3.0–5.7, mean 8.5±0.7 X 3.9±1.1 (n=11). Remarks. The colonies have stems much more developed than previously reported, with up to 15 polyps. Even when the colonies are deprived of polyps, it is possible to recognize the species by the characteristic colony structure. The present material also agrees in the cnidome with previous findings. Peña Cantero (2014b) observed discharged nematocysts in material from the Davis Sea, confirming they are microbasic euryteles. The gonosome of the species was previously unknown. The complete absence of polyps seems to indicate a complete investment in reproduction. The species has been reported a few times, always with many polyps, but without signs of reproductive structures. Ecology and distribution. Present material collected at depths between 325 and 409 m, epibiotic on Staurotheca nonscripta and Symplectoscyphus glacialis. Gonophores present in December. Uncommon species endemic to East Antarctica (Peña Cantero 2014b), so far only found three times, twice in the Davis Sea (Vanhöffen 1910; Peña Cantero 2014b) and another in the Ross Sea (Peña Cantero 2017). Published as part of Peña Cantero, Álvaro L. & Marzal, Marina Fresneda, 2018, Benthic ... |
format |
Other/Unknown Material |
author |
Peña Cantero, Álvaro L. Marzal, Marina Fresneda |
author_facet |
Peña Cantero, Álvaro L. Marzal, Marina Fresneda |
author_sort |
Peña Cantero, Álvaro L. |
title |
Bimeria corynopsis Vanhoffen 1910 |
title_short |
Bimeria corynopsis Vanhoffen 1910 |
title_full |
Bimeria corynopsis Vanhoffen 1910 |
title_fullStr |
Bimeria corynopsis Vanhoffen 1910 |
title_full_unstemmed |
Bimeria corynopsis Vanhoffen 1910 |
title_sort |
bimeria corynopsis vanhoffen 1910 |
publishDate |
2018 |
url |
https://zenodo.org/record/5978773 https://doi.org/10.5281/zenodo.5978773 |
long_lat |
ENVELOPE(93.500,93.500,-66.000,-66.000) |
geographic |
Davis Sea East Antarctica Ross Sea |
geographic_facet |
Davis Sea East Antarctica Ross Sea |
genre |
Antarc* Antarctica Davis Sea East Antarctica Ross Sea |
genre_facet |
Antarc* Antarctica Davis Sea East Antarctica Ross Sea |
op_source |
Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica), pp. 121-136 in Zootaxa 4441(1) 123-124 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03AC2855FF89FFB7E7FE78D46ADB2F03 doi:10.11646/zootaxa.4441.1.7 http://zenodo.org/record/1301927 http://publication.plazi.org/id/FF95502DFF8BFFB4E769790B69262D0D doi:10.5281/zenodo.1301931 http://zoobank.org/2D48BC12-329C-4476-BF43-4648B4807E3B doi:10.5281/zenodo.5978772 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5978773 https://doi.org/10.5281/zenodo.5978773 oai:zenodo.org:5978773 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.597877310.11646/zootaxa.4441.1.710.5281/zenodo.130193110.5281/zenodo.5978772 |
_version_ |
1766269245892591616 |