Chitonaster cataphractus Sladen 1889
Chitonaster cataphractus Sladen, 1889 (Figure 4 A–E) Sladen, 1889: 283; A.M. Clark, 1962: 22; 1992: 250; A.M. Clark, 1993: 250 (as C. cataphractus ) Distribution. South Sandwich and Thurston Island, Ellsworth Land to 62˚26’S, 95˚44’E (type locality), 3612– 5350 m. Comments and distinctions from othe...
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ftzenodo:oai:zenodo.org:6184329 2024-09-15T18:36:57+00:00 Chitonaster cataphractus Sladen 1889 Mah, Christopher L. 2011-12-31 https://doi.org/10.5281/zenodo.6184329 http://treatment.plazi.org/id/03D28792FFCEFF9184E4178A6ED0834B unknown Zenodo https://doi.org/10.5281/zenodo.276783 http://publication.plazi.org/id/FFEBFFEAFFC4FF9D847312686C098034 https://sibils.text-analytics.ch/search/collections/plazi/03D28792FFCEFF9184E4178A6ED0834B https://doi.org/10.5281/zenodo.276787 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6184328 https://doi.org/10.5281/zenodo.6184329 oai:zenodo.org:6184329 http://treatment.plazi.org/id/03D28792FFCEFF9184E4178A6ED0834B info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal 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, 11-13, (2011-12-31) Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Chitonaster Chitonaster cataphractus info:eu-repo/semantics/other 2011 ftzenodo https://doi.org/10.5281/zenodo.618432910.5281/zenodo.27678310.5281/zenodo.27678710.5281/zenodo.6184328 2024-07-26T21:25:28Z Chitonaster cataphractus Sladen, 1889 (Figure 4 A–E) Sladen, 1889: 283; A.M. Clark, 1962: 22; 1992: 250; A.M. Clark, 1993: 250 (as C. cataphractus ) Distribution. South Sandwich and Thurston Island, Ellsworth Land to 62˚26’S, 95˚44’E (type locality), 3612– 5350 m. Comments and distinctions from other species. Chitonaster cataphractus is distinguished from the other species of Chitonaster based on the single spines on each abactinal and superomarginal plate, the superomarginal and inferomarginal spines in series, the absence of pedicellariae, the elongate arms and relatively small disk (Fig. 4 A–E). Other characters, such as the relatively small abactinal plates and the absence of papulae, are shared between C. cataphractus , C. felli , and C. johannae . These all appear to be characters present in taxa collected from abyssal depths (2000–5000 m). Original type specimens and newly collected specimens of C. cataphractus show disparity between small and large sized specimens as well as the number of spines on the marginal plates. The serial spination on the superomarginals and inferomarginals is present in smaller C. cataphractus but is less distinct relative to those observed in the adults and may vary in specimens as specimen size inceases. Although morphological distinctions are clear between specimens examined, characters such as presence/absence of pedicellariae among other Goniasteridae have been shown to be variable. The boundary between C. cataphractus and C. johannae should be regarded carefully as more specimens become available. Material examined. USNM 1122198 South Sandwich Islands, 55˚05’ 35”S 25˚47’23”W, 5350 m. Coll. Moss Landing Marine Laboratories (1 dry spec. R=4.6, r=1.3); USNM 1122200 South Sandwich Islands, 55˚05’ 34.8”S 25˚ 47’ 23.28” W, 5350 m. Coll. Stacy Kim, Moss Landing (3 wet spec. R=5.4, r=1.5; R=5.5, r=1.8; R=5.7, 4=1.5), USNM 1086360 Thurston Island, Ellsworth Land, Southern Ocean. 70˚20’S, 99˚ 10’W to 70˚13’S, 98˚57’W. 3848–3980 m. (1 dry spec. R=2.0, r=0.7). Description. Body ... Other/Unknown Material South Sandwich Islands Southern Ocean Thurston Island Zenodo |
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op_collection_id |
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language |
unknown |
topic |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Chitonaster Chitonaster cataphractus |
spellingShingle |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Chitonaster Chitonaster cataphractus Mah, Christopher L. Chitonaster cataphractus Sladen 1889 |
topic_facet |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Chitonaster Chitonaster cataphractus |
description |
Chitonaster cataphractus Sladen, 1889 (Figure 4 A–E) Sladen, 1889: 283; A.M. Clark, 1962: 22; 1992: 250; A.M. Clark, 1993: 250 (as C. cataphractus ) Distribution. South Sandwich and Thurston Island, Ellsworth Land to 62˚26’S, 95˚44’E (type locality), 3612– 5350 m. Comments and distinctions from other species. Chitonaster cataphractus is distinguished from the other species of Chitonaster based on the single spines on each abactinal and superomarginal plate, the superomarginal and inferomarginal spines in series, the absence of pedicellariae, the elongate arms and relatively small disk (Fig. 4 A–E). Other characters, such as the relatively small abactinal plates and the absence of papulae, are shared between C. cataphractus , C. felli , and C. johannae . These all appear to be characters present in taxa collected from abyssal depths (2000–5000 m). Original type specimens and newly collected specimens of C. cataphractus show disparity between small and large sized specimens as well as the number of spines on the marginal plates. The serial spination on the superomarginals and inferomarginals is present in smaller C. cataphractus but is less distinct relative to those observed in the adults and may vary in specimens as specimen size inceases. Although morphological distinctions are clear between specimens examined, characters such as presence/absence of pedicellariae among other Goniasteridae have been shown to be variable. The boundary between C. cataphractus and C. johannae should be regarded carefully as more specimens become available. Material examined. USNM 1122198 South Sandwich Islands, 55˚05’ 35”S 25˚47’23”W, 5350 m. Coll. Moss Landing Marine Laboratories (1 dry spec. R=4.6, r=1.3); USNM 1122200 South Sandwich Islands, 55˚05’ 34.8”S 25˚ 47’ 23.28” W, 5350 m. Coll. Stacy Kim, Moss Landing (3 wet spec. R=5.4, r=1.5; R=5.5, r=1.8; R=5.7, 4=1.5), USNM 1086360 Thurston Island, Ellsworth Land, Southern Ocean. 70˚20’S, 99˚ 10’W to 70˚13’S, 98˚57’W. 3848–3980 m. (1 dry spec. R=2.0, r=0.7). Description. Body ... |
format |
Other/Unknown Material |
author |
Mah, Christopher L. |
author_facet |
Mah, Christopher L. |
author_sort |
Mah, Christopher L. |
title |
Chitonaster cataphractus Sladen 1889 |
title_short |
Chitonaster cataphractus Sladen 1889 |
title_full |
Chitonaster cataphractus Sladen 1889 |
title_fullStr |
Chitonaster cataphractus Sladen 1889 |
title_full_unstemmed |
Chitonaster cataphractus Sladen 1889 |
title_sort |
chitonaster cataphractus sladen 1889 |
publisher |
Zenodo |
publishDate |
2011 |
url |
https://doi.org/10.5281/zenodo.6184329 http://treatment.plazi.org/id/03D28792FFCEFF9184E4178A6ED0834B |
genre |
South Sandwich Islands Southern Ocean Thurston Island |
genre_facet |
South Sandwich Islands Southern Ocean Thurston Island |
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, 11-13, (2011-12-31) |
op_relation |
https://doi.org/10.5281/zenodo.276783 http://publication.plazi.org/id/FFEBFFEAFFC4FF9D847312686C098034 https://sibils.text-analytics.ch/search/collections/plazi/03D28792FFCEFF9184E4178A6ED0834B https://doi.org/10.5281/zenodo.276787 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6184328 https://doi.org/10.5281/zenodo.6184329 oai:zenodo.org:6184329 http://treatment.plazi.org/id/03D28792FFCEFF9184E4178A6ED0834B |
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.618432910.5281/zenodo.27678310.5281/zenodo.27678710.5281/zenodo.6184328 |
_version_ |
1810480690079203328 |