Rhizorhagium antarcticum Hickson & Gravely 1907
Rhizorhagium antarcticum (Hickson & Gravely, 1907) (Figs 1 C, D, 2E, F, 3F) Perigonimus antarcticus Hickson & Gravely, 1907: 4 –6, pl. 1 figs 1–3, pl. 4 fig. 32; Rees, 1938: 7; 1956: 338, 347; Naumov & Stepanjants, 1972: 33, 35; Stepanjants, 1972: 56–57, fig. 1; 1979: 10, pl. 1 fig. 1. A...
Main Author: | |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2015
|
Subjects: | |
Online Access: | https://doi.org/10.5281/zenodo.5671794 http://treatment.plazi.org/id/3D10878AFF92B44210905FB1FEE43BE5 |
id |
ftzenodo:oai:zenodo.org:5671794 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:5671794 2024-09-15T17:43:31+00:00 Rhizorhagium antarcticum Hickson & Gravely 1907 Peña Cantero, Álvaro L. 2015-12-31 https://doi.org/10.5281/zenodo.5671794 http://treatment.plazi.org/id/3D10878AFF92B44210905FB1FEE43BE5 unknown Zenodo https://doi.org/10.11646/zootaxa.3972.3.4 http://zenodo.org/record/236731 http://publication.plazi.org/id/C129FFF2FF9AB44B10075D3EFFD13F0D https://sibils.text-analytics.ch/search/collections/plazi/3D10878AFF92B44210905FB1FEE43BE5 https://www.gbif.org/species/119629008 https://www.checklistbank.org/dataset/40244/taxon/3D10878AFF92B44210905FB1FEE43BE5.taxon https://doi.org/10.5281/zenodo.236732 https://doi.org/10.5281/zenodo.236733 http://zoobank.org/C1698260-269E-4D15-A562-D8FF46751F7F https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5671793 https://doi.org/10.5281/zenodo.5671794 oai:zenodo.org:5671794 http://treatment.plazi.org/id/3D10878AFF92B44210905FB1FEE43BE5 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Review of some little-known benthic hydroids (Cnidaria, Hydrozoa) from the Southern Ocean, pp. 369-392 in Zootaxa, 3972(3), 377-378, (2015-12-31) Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Anthoathecata Bougainvilliidae Rhizorhagium Rhizorhagium antarcticum info:eu-repo/semantics/other 2015 ftzenodo https://doi.org/10.5281/zenodo.567179410.11646/zootaxa.3972.3.410.5281/zenodo.23673210.5281/zenodo.23673310.5281/zenodo.5671793 2024-07-26T03:21:30Z Rhizorhagium antarcticum (Hickson & Gravely, 1907) (Figs 1 C, D, 2E, F, 3F) Perigonimus antarcticus Hickson & Gravely, 1907: 4 –6, pl. 1 figs 1–3, pl. 4 fig. 32; Rees, 1938: 7; 1956: 338, 347; Naumov & Stepanjants, 1972: 33, 35; Stepanjants, 1972: 56–57, fig. 1; 1979: 10, pl. 1 fig. 1. Atractylis antarctica — Vanhöffen, 1910: 283, fig. 8; Atractylis antarcticus — Ritchie, 1913: 10, 11. Gravelya antarctica — Totton, 1930: 139, fig. 1a, b. ? Gravelya antarcticum — Schuchert, 1996: 41 –42, fig. 21a–d. Rhizorhagium antarcticum — Stechow, 1919: 21; Rees, 1956: 338, 347; Rees & Thursfield, 1965: 55; Millard, 1971: 401, fig. 3; Branch & Williams, 1993: 8, fig.; Peña Cantero, 2004: 768; Bouillon et al ., 2006: 137, fig. 79I, J; Peña Cantero et al ., 2013: 735 –736, figs 2c–d, 3a–b. Material examined. Discovery Antarctic Expedition 1901-04: Type (NHM 1907.8.20.1), McMurdo Bay (Ross Sea), 1–20 fms, several stems, with gonophores, on Hydrodendron arboreum . Description. Usually stolonal (Fig. 1 C, D), but stems with up to three polyps present. Stems covered with perisarc (Figs 1 C, D, 2E, F), smoothly disappearing on hydranth body (Fig. 2 E, F). No distinct pseudohydrotheca present. Polyps 800–900 µm high and 250–300 µm in maximum diameter, with conical hypostome and a distal crown of nine to 12 filiform tentacles (Fig. 2 E, F). Gonophores c. 950 µm high and c. 680 µm in maximum diameter, on short pedicels, either on hydrorhizal stolon or at basal part of largest stems (Figs 1 C, D, 3F). “The colonies appear to be invariably dioecious. In both sexes the gonophore is a degenerate medusa. protected by a thin layer of perisarc. It is larger in the female than in the male (1.1 mm. x 0.9 mm. in the female, and 0.9 mm. x 0.7 mm. in the male). In the female gonophore there is a large sub-umbrella cavity (fig. 3, su.c), the manubrium is well developed and has a well-marked endoderm cavity. In the young gonophore there is a distinct endodermal layer of cells and mesoglea in the umbrella, but in the adult ... Other/Unknown Material Antarc* Antarctic Antarctica antarcticus Ross Sea Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Anthoathecata Bougainvilliidae Rhizorhagium Rhizorhagium antarcticum |
spellingShingle |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Anthoathecata Bougainvilliidae Rhizorhagium Rhizorhagium antarcticum Peña Cantero, Álvaro L. Rhizorhagium antarcticum Hickson & Gravely 1907 |
topic_facet |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Anthoathecata Bougainvilliidae Rhizorhagium Rhizorhagium antarcticum |
description |
Rhizorhagium antarcticum (Hickson & Gravely, 1907) (Figs 1 C, D, 2E, F, 3F) Perigonimus antarcticus Hickson & Gravely, 1907: 4 –6, pl. 1 figs 1–3, pl. 4 fig. 32; Rees, 1938: 7; 1956: 338, 347; Naumov & Stepanjants, 1972: 33, 35; Stepanjants, 1972: 56–57, fig. 1; 1979: 10, pl. 1 fig. 1. Atractylis antarctica — Vanhöffen, 1910: 283, fig. 8; Atractylis antarcticus — Ritchie, 1913: 10, 11. Gravelya antarctica — Totton, 1930: 139, fig. 1a, b. ? Gravelya antarcticum — Schuchert, 1996: 41 –42, fig. 21a–d. Rhizorhagium antarcticum — Stechow, 1919: 21; Rees, 1956: 338, 347; Rees & Thursfield, 1965: 55; Millard, 1971: 401, fig. 3; Branch & Williams, 1993: 8, fig.; Peña Cantero, 2004: 768; Bouillon et al ., 2006: 137, fig. 79I, J; Peña Cantero et al ., 2013: 735 –736, figs 2c–d, 3a–b. Material examined. Discovery Antarctic Expedition 1901-04: Type (NHM 1907.8.20.1), McMurdo Bay (Ross Sea), 1–20 fms, several stems, with gonophores, on Hydrodendron arboreum . Description. Usually stolonal (Fig. 1 C, D), but stems with up to three polyps present. Stems covered with perisarc (Figs 1 C, D, 2E, F), smoothly disappearing on hydranth body (Fig. 2 E, F). No distinct pseudohydrotheca present. Polyps 800–900 µm high and 250–300 µm in maximum diameter, with conical hypostome and a distal crown of nine to 12 filiform tentacles (Fig. 2 E, F). Gonophores c. 950 µm high and c. 680 µm in maximum diameter, on short pedicels, either on hydrorhizal stolon or at basal part of largest stems (Figs 1 C, D, 3F). “The colonies appear to be invariably dioecious. In both sexes the gonophore is a degenerate medusa. protected by a thin layer of perisarc. It is larger in the female than in the male (1.1 mm. x 0.9 mm. in the female, and 0.9 mm. x 0.7 mm. in the male). In the female gonophore there is a large sub-umbrella cavity (fig. 3, su.c), the manubrium is well developed and has a well-marked endoderm cavity. In the young gonophore there is a distinct endodermal layer of cells and mesoglea in the umbrella, but in the adult ... |
format |
Other/Unknown Material |
author |
Peña Cantero, Álvaro L. |
author_facet |
Peña Cantero, Álvaro L. |
author_sort |
Peña Cantero, Álvaro L. |
title |
Rhizorhagium antarcticum Hickson & Gravely 1907 |
title_short |
Rhizorhagium antarcticum Hickson & Gravely 1907 |
title_full |
Rhizorhagium antarcticum Hickson & Gravely 1907 |
title_fullStr |
Rhizorhagium antarcticum Hickson & Gravely 1907 |
title_full_unstemmed |
Rhizorhagium antarcticum Hickson & Gravely 1907 |
title_sort |
rhizorhagium antarcticum hickson & gravely 1907 |
publisher |
Zenodo |
publishDate |
2015 |
url |
https://doi.org/10.5281/zenodo.5671794 http://treatment.plazi.org/id/3D10878AFF92B44210905FB1FEE43BE5 |
genre |
Antarc* Antarctic Antarctica antarcticus Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica antarcticus Ross Sea |
op_source |
Review of some little-known benthic hydroids (Cnidaria, Hydrozoa) from the Southern Ocean, pp. 369-392 in Zootaxa, 3972(3), 377-378, (2015-12-31) |
op_relation |
https://doi.org/10.11646/zootaxa.3972.3.4 http://zenodo.org/record/236731 http://publication.plazi.org/id/C129FFF2FF9AB44B10075D3EFFD13F0D https://sibils.text-analytics.ch/search/collections/plazi/3D10878AFF92B44210905FB1FEE43BE5 https://www.gbif.org/species/119629008 https://www.checklistbank.org/dataset/40244/taxon/3D10878AFF92B44210905FB1FEE43BE5.taxon https://doi.org/10.5281/zenodo.236732 https://doi.org/10.5281/zenodo.236733 http://zoobank.org/C1698260-269E-4D15-A562-D8FF46751F7F https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5671793 https://doi.org/10.5281/zenodo.5671794 oai:zenodo.org:5671794 http://treatment.plazi.org/id/3D10878AFF92B44210905FB1FEE43BE5 |
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.567179410.11646/zootaxa.3972.3.410.5281/zenodo.23673210.5281/zenodo.23673310.5281/zenodo.5671793 |
_version_ |
1810490524673507328 |