Glabraster A.H. Clark 1916
Glabraster A.H. Clark 1916 Figure 5 A–F Glabraster A.H. Clark 1916: 122 Type species: Porania magellanica Studer 1876 (a synoym of Porania antarctica Smith 1876) Diagnosis. Body weakly pentagonal to strongly stellate (R/r= 1.51–2.85). Arms, triangular in shape, varying from well-developed and elonga...
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ftzenodo:oai:zenodo.org:6133835 2023-06-06T11:46:51+02:00 Glabraster A.H. Clark 1916 Mah, Christopher L. Foltz, David W. 2014-12-31 https://zenodo.org/record/6133835 https://doi.org/10.5281/zenodo.6133835 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/039F453C955D872FFF0BFA2CFEB5FB6F doi:10.11646/zootaxa.3795.3.7 http://zenodo.org/record/252134 http://publication.plazi.org/id/FFA63D4495568723FF9CFFD9FFA3FF87 doi:10.5281/zenodo.252139 doi:10.5281/zenodo.252135 doi:10.5281/zenodo.252140 http://zoobank.org/77AB3EAA-DA13-4C8D-885D-EB9F5F14DE34 doi:10.5281/zenodo.6133834 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6133835 https://doi.org/10.5281/zenodo.6133835 oai:zenodo.org:6133835 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode New taxa and taxonomic revisions to the Poraniidae (Valvatacea; Asteroidea) with Comments on Feeding Biology, pp. 327-372 in Zootaxa 3795(3) 338-339 Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Poraniidae Glabraster info:eu-repo/semantics/other publication-taxonomictreatment 2014 ftzenodo https://doi.org/10.5281/zenodo.613383510.11646/zootaxa.3795.3.710.5281/zenodo.25213910.5281/zenodo.25213510.5281/zenodo.25214010.5281/zenodo.6133834 2023-04-13T22:11:31Z Glabraster A.H. Clark 1916 Figure 5 A–F Glabraster A.H. Clark 1916: 122 Type species: Porania magellanica Studer 1876 (a synoym of Porania antarctica Smith 1876) Diagnosis. Body weakly pentagonal to strongly stellate (R/r= 1.51–2.85). Arms, triangular in shape, varying from well-developed and elongate, contiguous with body to short and emerging abruptly from well-developed disk. Body generally tumescent. Prominent skin overlying abactinal, marginal and actinal surfaces. Plate outlines obscured in wet specimens. Abactinal plates forming widely-spaced, reticulate pattern. Skin present between widely reticulate plates bearing small ossicles among many of the open spaces. Spines present or absent on abactinal plates. When present, spines are prominent and present individually on each plate. Spines, short with thorn-like or blunt tips tend to be most prominent on plates where confluences of bands are present but they are also present in several individuals on individual abactinal bands. Marginal plates imbricate, differing in size. Superomarginals 3 x– 4 x larger than inferomarginals. Superomarginal plates, polylobate in shape, plate boundaries obscured by thickened tissue in wet specimens. Superomarginals with no spines, but spinelets variably present. Inferomarginal plates, irregularly polygonal, rounded and pinch out two to four plates before terminus in larger specimens but form nearly complete series in smaller individuals (R> 1.5 cm). Inferomarginals form actinolateral fringe, with one or two flattened spatulate spines present on each plate. Actinal plates, imbricate, forming transverse series between adambulacrals, plates skin covered, otherwise surficial accessories absent in most (i.e., no granules, no spinelets, etc.). Furrow spine (s) pointed, narrow, sheathed in skin, variably one or two, set within the furrow. Subambulacral spines, one or two, paddle shaped, larger than furrow spines (approximately twice as thick) with blunt tips. Subambulacral tips vary from more widely flattened to strongly cuved ... Other/Unknown Material Antarc* Antarctica Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Poraniidae Glabraster |
spellingShingle |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Poraniidae Glabraster Mah, Christopher L. Foltz, David W. Glabraster A.H. Clark 1916 |
topic_facet |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Poraniidae Glabraster |
description |
Glabraster A.H. Clark 1916 Figure 5 A–F Glabraster A.H. Clark 1916: 122 Type species: Porania magellanica Studer 1876 (a synoym of Porania antarctica Smith 1876) Diagnosis. Body weakly pentagonal to strongly stellate (R/r= 1.51–2.85). Arms, triangular in shape, varying from well-developed and elongate, contiguous with body to short and emerging abruptly from well-developed disk. Body generally tumescent. Prominent skin overlying abactinal, marginal and actinal surfaces. Plate outlines obscured in wet specimens. Abactinal plates forming widely-spaced, reticulate pattern. Skin present between widely reticulate plates bearing small ossicles among many of the open spaces. Spines present or absent on abactinal plates. When present, spines are prominent and present individually on each plate. Spines, short with thorn-like or blunt tips tend to be most prominent on plates where confluences of bands are present but they are also present in several individuals on individual abactinal bands. Marginal plates imbricate, differing in size. Superomarginals 3 x– 4 x larger than inferomarginals. Superomarginal plates, polylobate in shape, plate boundaries obscured by thickened tissue in wet specimens. Superomarginals with no spines, but spinelets variably present. Inferomarginal plates, irregularly polygonal, rounded and pinch out two to four plates before terminus in larger specimens but form nearly complete series in smaller individuals (R> 1.5 cm). Inferomarginals form actinolateral fringe, with one or two flattened spatulate spines present on each plate. Actinal plates, imbricate, forming transverse series between adambulacrals, plates skin covered, otherwise surficial accessories absent in most (i.e., no granules, no spinelets, etc.). Furrow spine (s) pointed, narrow, sheathed in skin, variably one or two, set within the furrow. Subambulacral spines, one or two, paddle shaped, larger than furrow spines (approximately twice as thick) with blunt tips. Subambulacral tips vary from more widely flattened to strongly cuved ... |
format |
Other/Unknown Material |
author |
Mah, Christopher L. Foltz, David W. |
author_facet |
Mah, Christopher L. Foltz, David W. |
author_sort |
Mah, Christopher L. |
title |
Glabraster A.H. Clark 1916 |
title_short |
Glabraster A.H. Clark 1916 |
title_full |
Glabraster A.H. Clark 1916 |
title_fullStr |
Glabraster A.H. Clark 1916 |
title_full_unstemmed |
Glabraster A.H. Clark 1916 |
title_sort |
glabraster a.h. clark 1916 |
publishDate |
2014 |
url |
https://zenodo.org/record/6133835 https://doi.org/10.5281/zenodo.6133835 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
New taxa and taxonomic revisions to the Poraniidae (Valvatacea; Asteroidea) with Comments on Feeding Biology, pp. 327-372 in Zootaxa 3795(3) 338-339 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/039F453C955D872FFF0BFA2CFEB5FB6F doi:10.11646/zootaxa.3795.3.7 http://zenodo.org/record/252134 http://publication.plazi.org/id/FFA63D4495568723FF9CFFD9FFA3FF87 doi:10.5281/zenodo.252139 doi:10.5281/zenodo.252135 doi:10.5281/zenodo.252140 http://zoobank.org/77AB3EAA-DA13-4C8D-885D-EB9F5F14DE34 doi:10.5281/zenodo.6133834 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6133835 https://doi.org/10.5281/zenodo.6133835 oai:zenodo.org:6133835 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.613383510.11646/zootaxa.3795.3.710.5281/zenodo.25213910.5281/zenodo.25213510.5281/zenodo.25214010.5281/zenodo.6133834 |
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1767952313638453248 |