Chondrocladia (Chondrocladia) antarctica Hentschel 1914
Chondrocladia (Chondrocladia) antarctica Hentschel, 1914 (Fig. 13, Tab. 9) Chondrocladia antarctica Hentschel, 1914: 77, pl. 4, fig. 6, pl. 6, fig. 5. Koltun 1964: 38. Material. 1 specimen from station 017- 10 (SMF 11752), 2189.7 m, 70 ° 4.58 ' S, 3 ° 19.66 ' W, 22.12. 2007. Description. O...
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2013
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Online Access: | https://dx.doi.org/10.5281/zenodo.6145291 https://zenodo.org/record/6145291 |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Cladorhizidae Chondrocladia Chondrocladia antarctica |
spellingShingle |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Cladorhizidae Chondrocladia Chondrocladia antarctica Göcke, Christian Janussen, Dorte Chondrocladia (Chondrocladia) antarctica Hentschel 1914 |
topic_facet |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Cladorhizidae Chondrocladia Chondrocladia antarctica |
description |
Chondrocladia (Chondrocladia) antarctica Hentschel, 1914 (Fig. 13, Tab. 9) Chondrocladia antarctica Hentschel, 1914: 77, pl. 4, fig. 6, pl. 6, fig. 5. Koltun 1964: 38. Material. 1 specimen from station 017- 10 (SMF 11752), 2189.7 m, 70 ° 4.58 ' S, 3 ° 19.66 ' W, 22.12. 2007. Description. Observed specimen (Fig. 13 A) with rounded body with thick stalk on underside and filaments on top side. Total height about 7 cm, with main part about 2.5 cm in diameter, stalk broken off at lower end, about 3 cm in length. Filaments about 1 cm in length, rarely longer. Surface hispid, consistency varying, but mainly very firm. Color alive and in alcohol greyish brown. Skeleton (Fig. 13 B, C): Cored by a very dense aggregation of spicules originating from the rooting stalk and running into the head, there branching into several spicular tracts which form the skeletal basis of filaments. Surrounding the dense core of the sponge a thick bark-like tissue, which is cored by paratangentially arranged styles and penetrated by the tracts running into filaments. A cavity between cortex and coring spicule tracts present. Epidermis showing an accumulation of chelae which sometimes protrude above surface. Spiculation (Tab. 9): Main spicules simple styles (Fig. 13 D–G), 925–2875 x 20–63 µm large. Among these a differentiation into two size categories present, one size class about 1400 µm in mean length and one about 2400 µm in mean length. Transitions between size classes present aggravating a final separation of size categories. Microscleres are: 1. anchorate isochelae I (Fig. 13 H), with three alae on each end, 80–109 µm in length. 2. anchorate isochelae II (Fig. 13 I), same shape as isochelae I, but distinctly smaller, 42–49 µm long. 3. c-shaped sigmas (Fig. 13 J), often relatively strong, sinuous, 89–142.5 x 44 –75 µm in size. Remarks. The species seems to be rather rare, the only detailed reports to our knowledge are the type description (Hentschel 1914) and a record by Koltun (1964), who mainly summarizes the data of Hentschel (1914). Two further specimens were collected in the abyssal Weddell Sea during the ANDEEP II expedition (Janussen, unpubl.). One major difference exists between our sponge and the holotype: Hentschel (1914) reports a distinct difference between two size categories of styles (compare Tab. 9). However, as he mentions a distinct transition between the two size categories, his presented data might be a falsifying simplification of the true situation. : Published as part of Göcke, Christian & Janussen, Dorte, 2013, Demospongiae of ANT XXIV / 2 (SYSTCO I) Expedition — Antarctic Eastern Weddell Sea, pp. 28-101 in Zootaxa 3692 (1) on page 66, DOI: 10.11646/zootaxa.3692.1.5, http://zenodo.org/record/249019 |
format |
Text |
author |
Göcke, Christian Janussen, Dorte |
author_facet |
Göcke, Christian Janussen, Dorte |
author_sort |
Göcke, Christian |
title |
Chondrocladia (Chondrocladia) antarctica Hentschel 1914 |
title_short |
Chondrocladia (Chondrocladia) antarctica Hentschel 1914 |
title_full |
Chondrocladia (Chondrocladia) antarctica Hentschel 1914 |
title_fullStr |
Chondrocladia (Chondrocladia) antarctica Hentschel 1914 |
title_full_unstemmed |
Chondrocladia (Chondrocladia) antarctica Hentschel 1914 |
title_sort |
chondrocladia (chondrocladia) antarctica hentschel 1914 |
publisher |
Zenodo |
publishDate |
2013 |
url |
https://dx.doi.org/10.5281/zenodo.6145291 https://zenodo.org/record/6145291 |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Weddell Sea |
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op_rights |
Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC0 |
op_doi |
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ftdatacite:10.5281/zenodo.6145291 2023-05-15T13:37:53+02:00 Chondrocladia (Chondrocladia) antarctica Hentschel 1914 Göcke, Christian Janussen, Dorte 2013 https://dx.doi.org/10.5281/zenodo.6145291 https://zenodo.org/record/6145291 unknown Zenodo http://zenodo.org/record/249019 http://publication.plazi.org/id/FFD6FFA8CD3388028029FF93FFE4FFE9 http://table.plazi.org/id/DF39664ECD15882480BEFC37FD12FBF5 http://zoobank.org/136660B8-7DCC-490E-AB79-46546CC18E40 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.3692.1.5 http://zenodo.org/record/249019 http://publication.plazi.org/id/FFD6FFA8CD3388028029FF93FFE4FFE9 https://dx.doi.org/10.5281/zenodo.249032 http://table.plazi.org/id/DF39664ECD15882480BEFC37FD12FBF5 http://zoobank.org/136660B8-7DCC-490E-AB79-46546CC18E40 https://dx.doi.org/10.5281/zenodo.6145290 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Cladorhizidae Chondrocladia Chondrocladia antarctica article-journal ScholarlyArticle Taxonomic treatment Text 2013 ftdatacite https://doi.org/10.5281/zenodo.6145291 https://doi.org/10.11646/zootaxa.3692.1.5 https://doi.org/10.5281/zenodo.249032 https://doi.org/10.5281/zenodo.6145290 2022-04-01T11:00:22Z Chondrocladia (Chondrocladia) antarctica Hentschel, 1914 (Fig. 13, Tab. 9) Chondrocladia antarctica Hentschel, 1914: 77, pl. 4, fig. 6, pl. 6, fig. 5. Koltun 1964: 38. Material. 1 specimen from station 017- 10 (SMF 11752), 2189.7 m, 70 ° 4.58 ' S, 3 ° 19.66 ' W, 22.12. 2007. Description. Observed specimen (Fig. 13 A) with rounded body with thick stalk on underside and filaments on top side. Total height about 7 cm, with main part about 2.5 cm in diameter, stalk broken off at lower end, about 3 cm in length. Filaments about 1 cm in length, rarely longer. Surface hispid, consistency varying, but mainly very firm. Color alive and in alcohol greyish brown. Skeleton (Fig. 13 B, C): Cored by a very dense aggregation of spicules originating from the rooting stalk and running into the head, there branching into several spicular tracts which form the skeletal basis of filaments. Surrounding the dense core of the sponge a thick bark-like tissue, which is cored by paratangentially arranged styles and penetrated by the tracts running into filaments. A cavity between cortex and coring spicule tracts present. Epidermis showing an accumulation of chelae which sometimes protrude above surface. Spiculation (Tab. 9): Main spicules simple styles (Fig. 13 D–G), 925–2875 x 20–63 µm large. Among these a differentiation into two size categories present, one size class about 1400 µm in mean length and one about 2400 µm in mean length. Transitions between size classes present aggravating a final separation of size categories. Microscleres are: 1. anchorate isochelae I (Fig. 13 H), with three alae on each end, 80–109 µm in length. 2. anchorate isochelae II (Fig. 13 I), same shape as isochelae I, but distinctly smaller, 42–49 µm long. 3. c-shaped sigmas (Fig. 13 J), often relatively strong, sinuous, 89–142.5 x 44 –75 µm in size. Remarks. The species seems to be rather rare, the only detailed reports to our knowledge are the type description (Hentschel 1914) and a record by Koltun (1964), who mainly summarizes the data of Hentschel (1914). Two further specimens were collected in the abyssal Weddell Sea during the ANDEEP II expedition (Janussen, unpubl.). One major difference exists between our sponge and the holotype: Hentschel (1914) reports a distinct difference between two size categories of styles (compare Tab. 9). However, as he mentions a distinct transition between the two size categories, his presented data might be a falsifying simplification of the true situation. : Published as part of Göcke, Christian & Janussen, Dorte, 2013, Demospongiae of ANT XXIV / 2 (SYSTCO I) Expedition — Antarctic Eastern Weddell Sea, pp. 28-101 in Zootaxa 3692 (1) on page 66, DOI: 10.11646/zootaxa.3692.1.5, http://zenodo.org/record/249019 Text Antarc* Antarctic Antarctica Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Antarctic Weddell Weddell Sea |