Halichondria (Halichondria)
Halichondria (Halichondria) sp. (Figure 11 (a)) Description Body elongated, cylindrical, with peduncle. Consistency is fragile and crumbly. The surface is uneven, scabrous, and coarse-pored. Dermal membrane is a thin crust filled with a layer of disorderly scattered spicules lying tangentially; easi...
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ftzenodo:oai:zenodo.org:3664863 2023-05-15T16:03:53+02:00 Halichondria (Halichondria) Morozov, Grigori Sabirov, Rushan Zimina, Olga 2019-01-08 https://zenodo.org/record/3664863 https://doi.org/10.5281/zenodo.3664863 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03A287D2FC7E41489BACF9CD31F43409 doi:10.1080/00222933.2018.1554166 http://zenodo.org/record/3654165 http://publication.plazi.org/id/FF9BFFAAFC6C415C9A7AFFC33570355D doi:10.5281/zenodo.3654221 http://zoobank.org/FA2EDE40-93E0-43B7-9ACF-ECCE12B0E671 doi:10.5281/zenodo.3664862 https://zenodo.org/communities/biosyslit https://zenodo.org/record/3664863 https://doi.org/10.5281/zenodo.3664863 oai:zenodo.org:3664863 info:eu-repo/semantics/openAccess Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation, pp. 2961-2992 in Journal of Natural History 52(47) 2961-2992 Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Halichondriidae Halichondria info:eu-repo/semantics/other publication-taxonomictreatment 2019 ftzenodo https://doi.org/10.5281/zenodo.366486310.1080/00222933.2018.155416610.5281/zenodo.365422110.5281/zenodo.3664862 2023-03-10T18:38:55Z Halichondria (Halichondria) sp. (Figure 11 (a)) Description Body elongated, cylindrical, with peduncle. Consistency is fragile and crumbly. The surface is uneven, scabrous, and coarse-pored. Dermal membrane is a thin crust filled with a layer of disorderly scattered spicules lying tangentially; easily separated from the tissues below. The largest of the fragments examined was about 2 cm in height and 1 cm in diameter. Colour (in alcohol) is light grey. Skeleton The main skeleton consists of quite compact, more or less longitudinally arranged, branching bundles, which have a thickness of 3 – 6 spicules. Numerous disorderly scattered single spicules fill the spaces between the main bundles. Towards the surface the bundles of the main skeleton become oriented more or less perpendicular to the ectosome, supporting the superficial crust. Spicules (Figure 11 (a)) Slightly curved, rather long-pointed oxea, dimensions: 243.7 – 443 – 604.2 (n = 30) × 8.5 – 15 – 18.5 (n = 25) µm. Distribution East Greenland Shelf, north-west of the Faroe Islands, the Barents and Kara seas, north of the New Siberian Islands (st. A-57). Depth range: 18 – 494 m. Remarks This species is quite similar to H. oblonga (Hansen 1885) except for the skeletal structure. As Lundbeck noted (1902, p. 24 – 26), the main skeleton of H. oblonga consists of an irregular network of loose fibres, in which the ‘ spread spicules outside the fibres as good as none are found ’. Furthermore, examined specimens are characterised by the absence of special ectosomal skeleton. To assess these differences, additional specimens need to be examined. Published as part of Morozov, Grigori, Sabirov, Rushan & Zimina, Olga, 2019, Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation, pp. 2961-2992 in Journal of Natural History 52 (47) on pages 2961-2992, DOI:10.1080/00222933.2018.1554166, http://zenodo.org/record/3654165 Other/Unknown Material East Greenland Faroe Islands Greenland New Siberian Islands Zenodo Faroe Islands Greenland New Siberian Islands ENVELOPE(142.000,142.000,75.000,75.000) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Halichondriidae Halichondria |
spellingShingle |
Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Halichondriidae Halichondria Morozov, Grigori Sabirov, Rushan Zimina, Olga Halichondria (Halichondria) |
topic_facet |
Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Halichondriidae Halichondria |
description |
Halichondria (Halichondria) sp. (Figure 11 (a)) Description Body elongated, cylindrical, with peduncle. Consistency is fragile and crumbly. The surface is uneven, scabrous, and coarse-pored. Dermal membrane is a thin crust filled with a layer of disorderly scattered spicules lying tangentially; easily separated from the tissues below. The largest of the fragments examined was about 2 cm in height and 1 cm in diameter. Colour (in alcohol) is light grey. Skeleton The main skeleton consists of quite compact, more or less longitudinally arranged, branching bundles, which have a thickness of 3 – 6 spicules. Numerous disorderly scattered single spicules fill the spaces between the main bundles. Towards the surface the bundles of the main skeleton become oriented more or less perpendicular to the ectosome, supporting the superficial crust. Spicules (Figure 11 (a)) Slightly curved, rather long-pointed oxea, dimensions: 243.7 – 443 – 604.2 (n = 30) × 8.5 – 15 – 18.5 (n = 25) µm. Distribution East Greenland Shelf, north-west of the Faroe Islands, the Barents and Kara seas, north of the New Siberian Islands (st. A-57). Depth range: 18 – 494 m. Remarks This species is quite similar to H. oblonga (Hansen 1885) except for the skeletal structure. As Lundbeck noted (1902, p. 24 – 26), the main skeleton of H. oblonga consists of an irregular network of loose fibres, in which the ‘ spread spicules outside the fibres as good as none are found ’. Furthermore, examined specimens are characterised by the absence of special ectosomal skeleton. To assess these differences, additional specimens need to be examined. Published as part of Morozov, Grigori, Sabirov, Rushan & Zimina, Olga, 2019, Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation, pp. 2961-2992 in Journal of Natural History 52 (47) on pages 2961-2992, DOI:10.1080/00222933.2018.1554166, http://zenodo.org/record/3654165 |
format |
Other/Unknown Material |
author |
Morozov, Grigori Sabirov, Rushan Zimina, Olga |
author_facet |
Morozov, Grigori Sabirov, Rushan Zimina, Olga |
author_sort |
Morozov, Grigori |
title |
Halichondria (Halichondria) |
title_short |
Halichondria (Halichondria) |
title_full |
Halichondria (Halichondria) |
title_fullStr |
Halichondria (Halichondria) |
title_full_unstemmed |
Halichondria (Halichondria) |
title_sort |
halichondria (halichondria) |
publishDate |
2019 |
url |
https://zenodo.org/record/3664863 https://doi.org/10.5281/zenodo.3664863 |
long_lat |
ENVELOPE(142.000,142.000,75.000,75.000) |
geographic |
Faroe Islands Greenland New Siberian Islands |
geographic_facet |
Faroe Islands Greenland New Siberian Islands |
genre |
East Greenland Faroe Islands Greenland New Siberian Islands |
genre_facet |
East Greenland Faroe Islands Greenland New Siberian Islands |
op_source |
Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation, pp. 2961-2992 in Journal of Natural History 52(47) 2961-2992 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03A287D2FC7E41489BACF9CD31F43409 doi:10.1080/00222933.2018.1554166 http://zenodo.org/record/3654165 http://publication.plazi.org/id/FF9BFFAAFC6C415C9A7AFFC33570355D doi:10.5281/zenodo.3654221 http://zoobank.org/FA2EDE40-93E0-43B7-9ACF-ECCE12B0E671 doi:10.5281/zenodo.3664862 https://zenodo.org/communities/biosyslit https://zenodo.org/record/3664863 https://doi.org/10.5281/zenodo.3664863 oai:zenodo.org:3664863 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.366486310.1080/00222933.2018.155416610.5281/zenodo.365422110.5281/zenodo.3664862 |
_version_ |
1766399577436454912 |