Pillsburiaster calvus Mah, 2011, n. sp.
Pillsburiaster calvus n. sp. (Figures 17 A–E) Diagnosis. Carinal series clearly distinguished, strongly convex, each plate with a periphery of ~ 20 coarse, sphaerical granules with 8–12 granules covering the plate surface (20–30 total on each plate surface). Superomarginal plates elongate with a str...
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ftzenodo:oai:zenodo.org:6184373 2023-05-15T18:16:01+02:00 Pillsburiaster calvus Mah, 2011, n. sp. Mah, Christopher L. 2011-12-31 https://zenodo.org/record/6184373 https://doi.org/10.5281/zenodo.6184373 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03D28792FFECFFB784E416C46D5C8208 doi:10.5281/zenodo.276783 http://publication.plazi.org/id/FFEBFFEAFFC4FF9D847312686C098034 doi:10.5281/zenodo.276800 doi:10.5281/zenodo.6184372 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6184373 https://doi.org/10.5281/zenodo.6184373 oai:zenodo.org:6184373 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Taxonomy of high-latitude Goniasteridae (Subantarctic & Antarctic): one new genus, and three new species with an overview and key to taxa, pp. 1-48 in Zootaxa 2759 41-43 Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Pillsburiaster Pillsburiaster calvus info:eu-repo/semantics/other publication-taxonomictreatment 2011 ftzenodo https://doi.org/10.5281/zenodo.618437310.5281/zenodo.27678310.5281/zenodo.27680010.5281/zenodo.6184372 2023-03-10T18:12:48Z Pillsburiaster calvus n. sp. (Figures 17 A–E) Diagnosis. Carinal series clearly distinguished, strongly convex, each plate with a periphery of ~ 20 coarse, sphaerical granules with 8–12 granules covering the plate surface (20–30 total on each plate surface). Superomarginal plates elongate with a strongly convex, round area free from granules, occupying 50 – 50 % of each supeormarginal plate surface. Furrow spines 2–3. Body weakly stellate (R/r= 1.74). Etymology. The species epithet “ calvus ” refers to the Latin for “bald” which refers to the prominent bald spots on the superomarginal plate surface. Distribution. Burdwood Bank in the Scotia Sea from 339– 357 m. Material examined. HOLOTYPE. USNM 1149357. Burdwood Bank. 54 ° 43 ’S; 56 ° 37 ’W to 54 ° 42 ’S; 56 ° 36 ’W. 339– 357 m. Coll. R/V Eltanin, University of Southern California, 14 March 1966.(1 dry spec., R= 4, r= 2.3). Description. Body form stellate-pentagonal (R/r= 1.74). Interadial arcs concave. Arms triangular (Fig. 17 A). Abactinal plates rounded to irregular in outline, larger proximally becoming smaller and more irregular closer to contact with superomarginal plate series. Plates flattened with fasciolar grooves absent. Carinal plate series relatively nondescript relative to other abactinal plates, and are covered with granules proximally, except at distalmost regions on arms. At approximately nine to 10 carinals away from the terminus, these plates become bare and strongly convex, irregularly round in outline. All other abactinal plates covered by granules, 15–45 in number, rounded to weakly pointed (Fig. 17 B). Granules crowded but evenly spaced and are largest centrally with smaller granules forming periphery. Boundary between central and peripheral granules weakly defined. Papulae present in radial regions where they surround abactinal plates, six to a plate. Papulae absent interradially and centrally on disk. Marginal plates 28 in each interradius (armtip to armtip), elongate in shape (Fig. 17 A). Superomarginal and inferomarginal plates with 1: ... Other/Unknown Material Scotia Sea Zenodo Scotia Sea Burdwood Bank ENVELOPE(-59.000,-59.000,-54.250,-54.250) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Pillsburiaster Pillsburiaster calvus |
spellingShingle |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Pillsburiaster Pillsburiaster calvus Mah, Christopher L. Pillsburiaster calvus Mah, 2011, n. sp. |
topic_facet |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Pillsburiaster Pillsburiaster calvus |
description |
Pillsburiaster calvus n. sp. (Figures 17 A–E) Diagnosis. Carinal series clearly distinguished, strongly convex, each plate with a periphery of ~ 20 coarse, sphaerical granules with 8–12 granules covering the plate surface (20–30 total on each plate surface). Superomarginal plates elongate with a strongly convex, round area free from granules, occupying 50 – 50 % of each supeormarginal plate surface. Furrow spines 2–3. Body weakly stellate (R/r= 1.74). Etymology. The species epithet “ calvus ” refers to the Latin for “bald” which refers to the prominent bald spots on the superomarginal plate surface. Distribution. Burdwood Bank in the Scotia Sea from 339– 357 m. Material examined. HOLOTYPE. USNM 1149357. Burdwood Bank. 54 ° 43 ’S; 56 ° 37 ’W to 54 ° 42 ’S; 56 ° 36 ’W. 339– 357 m. Coll. R/V Eltanin, University of Southern California, 14 March 1966.(1 dry spec., R= 4, r= 2.3). Description. Body form stellate-pentagonal (R/r= 1.74). Interadial arcs concave. Arms triangular (Fig. 17 A). Abactinal plates rounded to irregular in outline, larger proximally becoming smaller and more irregular closer to contact with superomarginal plate series. Plates flattened with fasciolar grooves absent. Carinal plate series relatively nondescript relative to other abactinal plates, and are covered with granules proximally, except at distalmost regions on arms. At approximately nine to 10 carinals away from the terminus, these plates become bare and strongly convex, irregularly round in outline. All other abactinal plates covered by granules, 15–45 in number, rounded to weakly pointed (Fig. 17 B). Granules crowded but evenly spaced and are largest centrally with smaller granules forming periphery. Boundary between central and peripheral granules weakly defined. Papulae present in radial regions where they surround abactinal plates, six to a plate. Papulae absent interradially and centrally on disk. Marginal plates 28 in each interradius (armtip to armtip), elongate in shape (Fig. 17 A). Superomarginal and inferomarginal plates with 1: ... |
format |
Other/Unknown Material |
author |
Mah, Christopher L. |
author_facet |
Mah, Christopher L. |
author_sort |
Mah, Christopher L. |
title |
Pillsburiaster calvus Mah, 2011, n. sp. |
title_short |
Pillsburiaster calvus Mah, 2011, n. sp. |
title_full |
Pillsburiaster calvus Mah, 2011, n. sp. |
title_fullStr |
Pillsburiaster calvus Mah, 2011, n. sp. |
title_full_unstemmed |
Pillsburiaster calvus Mah, 2011, n. sp. |
title_sort |
pillsburiaster calvus mah, 2011, n. sp. |
publishDate |
2011 |
url |
https://zenodo.org/record/6184373 https://doi.org/10.5281/zenodo.6184373 |
long_lat |
ENVELOPE(-59.000,-59.000,-54.250,-54.250) |
geographic |
Scotia Sea Burdwood Bank |
geographic_facet |
Scotia Sea Burdwood Bank |
genre |
Scotia Sea |
genre_facet |
Scotia Sea |
op_source |
Taxonomy of high-latitude Goniasteridae (Subantarctic & Antarctic): one new genus, and three new species with an overview and key to taxa, pp. 1-48 in Zootaxa 2759 41-43 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03D28792FFECFFB784E416C46D5C8208 doi:10.5281/zenodo.276783 http://publication.plazi.org/id/FFEBFFEAFFC4FF9D847312686C098034 doi:10.5281/zenodo.276800 doi:10.5281/zenodo.6184372 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6184373 https://doi.org/10.5281/zenodo.6184373 oai:zenodo.org:6184373 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.618437310.5281/zenodo.27678310.5281/zenodo.27680010.5281/zenodo.6184372 |
_version_ |
1766189433851215872 |