Scytophorus Hertwig 1882
GENUS SCYTOPHORUS HERTWIG, 1882 Diagnosis (after Carlgren, 1949; modifications in italics). Halcampoididae with elongate body and flat aboral end. Column indistinctly divisible into scapus and scapulus. Cuticle developed chiefly on scapus, with modified weak tenaculi more or less visible to the nake...
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Online Access: | https://doi.org/10.5281/zenodo.5752651 http://treatment.plazi.org/id/2964E41DFFB3FFC6FC1BC007FD10B416 |
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ftzenodo:oai:zenodo.org:5752651 2024-09-15T17:41:51+00:00 Scytophorus Hertwig 1882 Gusmão, Luciana C. Rodríguez, Estefanía 2021-02-18 https://doi.org/10.5281/zenodo.5752651 http://treatment.plazi.org/id/2964E41DFFB3FFC6FC1BC007FD10B416 unknown Zenodo https://doi.org/10.1093/zoolinnean/zlaa176 http://zenodo.org/record/5752621 http://publication.plazi.org/id/D55D9C65FFB9FFCDFF8FC136FFD4B21F https://sibils.text-analytics.ch/search/collections/plazi/2964E41DFFB3FFC6FC1BC007FD10B416 https://www.gbif.org/species/190876204 https://www.checklistbank.org/dataset/3130/taxon/2964E41DFFB3FFC6FC1BC007FD10B416.taxon https://doi.org/10.5281/zenodo.5752639 https://doi.org/10.5281/zenodo.5752643 http://zoobank.org/D000BAA9-51C4-46FE-AC9B-BB361B601FA2 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5752650 https://doi.org/10.5281/zenodo.5752651 oai:zenodo.org:5752651 http://treatment.plazi.org/id/2964E41DFFB3FFC6FC1BC007FD10B416 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Two sea anemones (Cnidaria: Anthozoa: Actiniaria) from the Southern Ocean with evidence of a deep-sea, polar lineage of burrowing sea anemones, pp. 1392-1415 in Zoological Journal of the Linnean Society, 193, 1402, (2021-02-18) Biodiversity Taxonomy Animalia Cnidaria Anthozoa Actiniaria Halcampoididae Scytophorus info:eu-repo/semantics/other 2021 ftzenodo https://doi.org/10.5281/zenodo.575265110.1093/zoolinnean/zlaa17610.5281/zenodo.575263910.5281/zenodo.575264310.5281/zenodo.5752650 2024-07-26T19:58:54Z GENUS SCYTOPHORUS HERTWIG, 1882 Diagnosis (after Carlgren, 1949; modifications in italics). Halcampoididae with elongate body and flat aboral end. Column indistinctly divisible into scapus and scapulus. Cuticle developed chiefly on scapus, with modified weak tenaculi more or less visible to the naked eye. No sphincter. Tentacles 14, with longitudinal muscles ectodermal. A single weak, ventral siphonoglyph without conchula. Mesenteries 14, six pairs plus one couple; individual mesenteries of couple with retractors faced towards dorsal pairs of directives, wherefore there is seemingly a single pair of directives. All mesenteries perfect, with retractors strong, restricted to kidneylike. Parietal muscles well developed. As a rule, all mesenteries fertile. Ciliate tracts of filaments may be discontinuous. Cnidom: spirocysts, basitrichs, p -mastigophores A . Type species: Scytophorus striatus by monotypy. Included species: Scytophorus antarcticus (Pfeffer, 1889) and S. striatus. Remarks: We modified the generic diagnosis by removing the mention of a physa-like structure in members of Scytophorus . Although Hertwig (1882) described S. striatus as lacking a pedal disc and with a round aboral end, all of the S. striatus specimens examined had a distinct flat aboral end (Figs 6C, 7A, F) as seen attached to solid substrates (Fig. 6A). Although most of the specimens of S. striatus observed had their distal column and oral disc contracted, when they are relaxed, the scapulus can be easily distinguished from the rest of the column (see Fig. 6D). We left in the diagnosis the presence of a weak siphonoglyph, but this structure was difficult to observe in dissections (Fig. 7G), histological sections or micro-CT scans (Fig. 7K), as noted by others (e.g. Carlgren, 1921). Published as part of Gusmão, Luciana C. & Rodríguez, Estefanía, 2021, Two sea anemones (Cnidaria: Anthozoa: Actiniaria) from the Southern Ocean with evidence of a deep-sea, polar lineage of burrowing sea anemones, pp. 1392-1415 in Zoological Journal of the ... Other/Unknown Material Antarc* antarcticus Southern Ocean Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Cnidaria Anthozoa Actiniaria Halcampoididae Scytophorus |
spellingShingle |
Biodiversity Taxonomy Animalia Cnidaria Anthozoa Actiniaria Halcampoididae Scytophorus Gusmão, Luciana C. Rodríguez, Estefanía Scytophorus Hertwig 1882 |
topic_facet |
Biodiversity Taxonomy Animalia Cnidaria Anthozoa Actiniaria Halcampoididae Scytophorus |
description |
GENUS SCYTOPHORUS HERTWIG, 1882 Diagnosis (after Carlgren, 1949; modifications in italics). Halcampoididae with elongate body and flat aboral end. Column indistinctly divisible into scapus and scapulus. Cuticle developed chiefly on scapus, with modified weak tenaculi more or less visible to the naked eye. No sphincter. Tentacles 14, with longitudinal muscles ectodermal. A single weak, ventral siphonoglyph without conchula. Mesenteries 14, six pairs plus one couple; individual mesenteries of couple with retractors faced towards dorsal pairs of directives, wherefore there is seemingly a single pair of directives. All mesenteries perfect, with retractors strong, restricted to kidneylike. Parietal muscles well developed. As a rule, all mesenteries fertile. Ciliate tracts of filaments may be discontinuous. Cnidom: spirocysts, basitrichs, p -mastigophores A . Type species: Scytophorus striatus by monotypy. Included species: Scytophorus antarcticus (Pfeffer, 1889) and S. striatus. Remarks: We modified the generic diagnosis by removing the mention of a physa-like structure in members of Scytophorus . Although Hertwig (1882) described S. striatus as lacking a pedal disc and with a round aboral end, all of the S. striatus specimens examined had a distinct flat aboral end (Figs 6C, 7A, F) as seen attached to solid substrates (Fig. 6A). Although most of the specimens of S. striatus observed had their distal column and oral disc contracted, when they are relaxed, the scapulus can be easily distinguished from the rest of the column (see Fig. 6D). We left in the diagnosis the presence of a weak siphonoglyph, but this structure was difficult to observe in dissections (Fig. 7G), histological sections or micro-CT scans (Fig. 7K), as noted by others (e.g. Carlgren, 1921). Published as part of Gusmão, Luciana C. & Rodríguez, Estefanía, 2021, Two sea anemones (Cnidaria: Anthozoa: Actiniaria) from the Southern Ocean with evidence of a deep-sea, polar lineage of burrowing sea anemones, pp. 1392-1415 in Zoological Journal of the ... |
format |
Other/Unknown Material |
author |
Gusmão, Luciana C. Rodríguez, Estefanía |
author_facet |
Gusmão, Luciana C. Rodríguez, Estefanía |
author_sort |
Gusmão, Luciana C. |
title |
Scytophorus Hertwig 1882 |
title_short |
Scytophorus Hertwig 1882 |
title_full |
Scytophorus Hertwig 1882 |
title_fullStr |
Scytophorus Hertwig 1882 |
title_full_unstemmed |
Scytophorus Hertwig 1882 |
title_sort |
scytophorus hertwig 1882 |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.5281/zenodo.5752651 http://treatment.plazi.org/id/2964E41DFFB3FFC6FC1BC007FD10B416 |
genre |
Antarc* antarcticus Southern Ocean |
genre_facet |
Antarc* antarcticus Southern Ocean |
op_source |
Two sea anemones (Cnidaria: Anthozoa: Actiniaria) from the Southern Ocean with evidence of a deep-sea, polar lineage of burrowing sea anemones, pp. 1392-1415 in Zoological Journal of the Linnean Society, 193, 1402, (2021-02-18) |
op_relation |
https://doi.org/10.1093/zoolinnean/zlaa176 http://zenodo.org/record/5752621 http://publication.plazi.org/id/D55D9C65FFB9FFCDFF8FC136FFD4B21F https://sibils.text-analytics.ch/search/collections/plazi/2964E41DFFB3FFC6FC1BC007FD10B416 https://www.gbif.org/species/190876204 https://www.checklistbank.org/dataset/3130/taxon/2964E41DFFB3FFC6FC1BC007FD10B416.taxon https://doi.org/10.5281/zenodo.5752639 https://doi.org/10.5281/zenodo.5752643 http://zoobank.org/D000BAA9-51C4-46FE-AC9B-BB361B601FA2 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.5752650 https://doi.org/10.5281/zenodo.5752651 oai:zenodo.org:5752651 http://treatment.plazi.org/id/2964E41DFFB3FFC6FC1BC007FD10B416 |
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.575265110.1093/zoolinnean/zlaa17610.5281/zenodo.575263910.5281/zenodo.575264310.5281/zenodo.5752650 |
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1810488141928202240 |