A new species of Ophiocoma (Echinodermata: Ophiuroidea) from Archipelago Trindade and Martin Vaz, Southeastern Atlantic, and redescription of Ophiocoma echinata
The brittle stars of the family Ophiocomidae inhabit shallow waters and coral reefs of tropical regions. The species of Ophiocoma are difficult to identify due to high morphological variation, especially when different stages of development are observed. Here, based on morphological analyses, two Br...
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| Veröffentlicht in: | Journal of the Marine Biological Association of the United Kingdom 2023-07, Vol.103, Article e49 |
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| creator | Serrano, Helena Damiano, Cecília J. S. Alitto, Renata A. S. Guilherme, Pablo D. B. Cerqueira, Walter R. P. Mendonça, Joel B. Tavares, Marcos Borges, Michela |
| description | The brittle stars of the family Ophiocomidae inhabit shallow waters and coral reefs of tropical regions. The species of Ophiocoma are difficult to identify due to high morphological variation, especially when different stages of development are observed. Here, based on morphological analyses, two Brazilian morphotypes of Ophiocoma were studied and characterized, Ophiocoma sp. NB (Northeastern Brazil) and Ophiocoma sp. TMV (Trindade and Martin Vaz Archipelago), and subsequently thoroughly analysed to confirm whether they were the same species or not. After the morphological studies, including external morphology, morphometry and microstructural characters, and analysis of molecular data, involving the 16S gene, it was concluded that Ophiocoma sp. NB and Ophiocoma sp. TMV do not correspond to the same species, the first being identified as Ophiocoma echinata (Lamarck, 1816) and the latter being a new species. This new species is characterized by two tentacle scales on the first arm segment and then one on all following segments, and the dorsalmost arm spines are robust and rounded, as wide as long or almost as wide as long. |
| doi_str_mv | 10.1017/S0025315423000383 |
| format | Article |
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S. ; Alitto, Renata A. S. ; Guilherme, Pablo D. B. ; Cerqueira, Walter R. P. ; Mendonça, Joel B. ; Tavares, Marcos ; Borges, Michela</creator><creatorcontrib>Serrano, Helena ; Damiano, Cecília J. S. ; Alitto, Renata A. S. ; Guilherme, Pablo D. B. ; Cerqueira, Walter R. P. ; Mendonça, Joel B. ; Tavares, Marcos ; Borges, Michela</creatorcontrib><description>The brittle stars of the family Ophiocomidae inhabit shallow waters and coral reefs of tropical regions. The species of Ophiocoma are difficult to identify due to high morphological variation, especially when different stages of development are observed. Here, based on morphological analyses, two Brazilian morphotypes of Ophiocoma were studied and characterized, Ophiocoma sp. NB (Northeastern Brazil) and Ophiocoma sp. TMV (Trindade and Martin Vaz Archipelago), and subsequently thoroughly analysed to confirm whether they were the same species or not. After the morphological studies, including external morphology, morphometry and microstructural characters, and analysis of molecular data, involving the 16S gene, it was concluded that Ophiocoma sp. NB and Ophiocoma sp. TMV do not correspond to the same species, the first being identified as Ophiocoma echinata (Lamarck, 1816) and the latter being a new species. This new species is characterized by two tentacle scales on the first arm segment and then one on all following segments, and the dorsalmost arm spines are robust and rounded, as wide as long or almost as wide as long.</description><identifier>ISSN: 0025-3154</identifier><identifier>EISSN: 1469-7769</identifier><identifier>DOI: 10.1017/S0025315423000383</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Archipelagoes ; Coasts ; Coral reefs ; Developmental stages ; Discriminant analysis ; Electron microscopes ; Marine invertebrates ; Marine Record ; Microscopy ; Morphology ; Morphometry ; Museums ; New species ; Ophiocoma ; Ophiocoma echinata ; Ophiuroidea ; Physical characteristics ; Segments ; Shallow water ; Spines ; Taxonomy ; Tentacles ; Tropical environment ; Tropical environments ; Vertebrae ; Zoology</subject><ispartof>Journal of the Marine Biological Association of the United Kingdom, 2023-07, Vol.103, Article e49</ispartof><rights>Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c269t-8fbfbb0883a70bc737802324e5a96447c3886546dbd1cc7491d3b7c575bad4183</cites><orcidid>0000-0003-0656-6526 ; 0000-0001-9732-4877</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0025315423000383/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,780,784,27924,27925,55628</link.rule.ids></links><search><creatorcontrib>Serrano, Helena</creatorcontrib><creatorcontrib>Damiano, Cecília J. S.</creatorcontrib><creatorcontrib>Alitto, Renata A. S.</creatorcontrib><creatorcontrib>Guilherme, Pablo D. B.</creatorcontrib><creatorcontrib>Cerqueira, Walter R. P.</creatorcontrib><creatorcontrib>Mendonça, Joel B.</creatorcontrib><creatorcontrib>Tavares, Marcos</creatorcontrib><creatorcontrib>Borges, Michela</creatorcontrib><title>A new species of Ophiocoma (Echinodermata: Ophiuroidea) from Archipelago Trindade and Martin Vaz, Southeastern Atlantic, and redescription of Ophiocoma echinata</title><title>Journal of the Marine Biological Association of the United Kingdom</title><addtitle>J. Mar. Biol. Ass</addtitle><description>The brittle stars of the family Ophiocomidae inhabit shallow waters and coral reefs of tropical regions. The species of Ophiocoma are difficult to identify due to high morphological variation, especially when different stages of development are observed. Here, based on morphological analyses, two Brazilian morphotypes of Ophiocoma were studied and characterized, Ophiocoma sp. NB (Northeastern Brazil) and Ophiocoma sp. TMV (Trindade and Martin Vaz Archipelago), and subsequently thoroughly analysed to confirm whether they were the same species or not. After the morphological studies, including external morphology, morphometry and microstructural characters, and analysis of molecular data, involving the 16S gene, it was concluded that Ophiocoma sp. NB and Ophiocoma sp. TMV do not correspond to the same species, the first being identified as Ophiocoma echinata (Lamarck, 1816) and the latter being a new species. This new species is characterized by two tentacle scales on the first arm segment and then one on all following segments, and the dorsalmost arm spines are robust and rounded, as wide as long or almost as wide as long.</description><subject>Archipelagoes</subject><subject>Coasts</subject><subject>Coral reefs</subject><subject>Developmental stages</subject><subject>Discriminant analysis</subject><subject>Electron microscopes</subject><subject>Marine invertebrates</subject><subject>Marine Record</subject><subject>Microscopy</subject><subject>Morphology</subject><subject>Morphometry</subject><subject>Museums</subject><subject>New species</subject><subject>Ophiocoma</subject><subject>Ophiocoma echinata</subject><subject>Ophiuroidea</subject><subject>Physical characteristics</subject><subject>Segments</subject><subject>Shallow water</subject><subject>Spines</subject><subject>Taxonomy</subject><subject>Tentacles</subject><subject>Tropical environment</subject><subject>Tropical environments</subject><subject>Vertebrae</subject><subject>Zoology</subject><issn>0025-3154</issn><issn>1469-7769</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kVFLHDEUhUNR6Hb1B_Qt4IuCU5NJZpLxbRG1BWUfVvs63EnuuJGdZJpkEftr-lOdVaGU4tN9ON85B-4h5Ctn3zjj6mzFWFkJXslSMMaEFp_IjMu6KZSqmz0y28nFTv9MvqT0ODG8VnpG_iyoxyeaRjQOEw09XY5rF0wYgB5fmrXzwWIcIMP5q7KNwVmEE9rHMNBFnIgRN_AQ6F103oJFCt7SW4jZefoTfp_SVdjmNULKGD1d5A347MzpKxbRYjLRjdkF_2857rqn2gOy38Mm4eH7nZP7q8u7i-_FzfL6x8XipjBl3eRC913fdUxrAYp1RgmlWSlKiRU0tZTKCK3rSta2s9wYJRtuRadMpaoOrORazMnRW-4Yw68tptw-hm30U2VbaiG15mp68JzwN8rEkFLEvh2jGyA-t5y1uyHa_4aYPOLdA0MXnX3Av9Efu14AHTmLmw</recordid><startdate>20230710</startdate><enddate>20230710</enddate><creator>Serrano, Helena</creator><creator>Damiano, Cecília J. 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S.</au><au>Alitto, Renata A. S.</au><au>Guilherme, Pablo D. B.</au><au>Cerqueira, Walter R. P.</au><au>Mendonça, Joel B.</au><au>Tavares, Marcos</au><au>Borges, Michela</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A new species of Ophiocoma (Echinodermata: Ophiuroidea) from Archipelago Trindade and Martin Vaz, Southeastern Atlantic, and redescription of Ophiocoma echinata</atitle><jtitle>Journal of the Marine Biological Association of the United Kingdom</jtitle><addtitle>J. Mar. Biol. Ass</addtitle><date>2023-07-10</date><risdate>2023</risdate><volume>103</volume><artnum>e49</artnum><issn>0025-3154</issn><eissn>1469-7769</eissn><abstract>The brittle stars of the family Ophiocomidae inhabit shallow waters and coral reefs of tropical regions. The species of Ophiocoma are difficult to identify due to high morphological variation, especially when different stages of development are observed. Here, based on morphological analyses, two Brazilian morphotypes of Ophiocoma were studied and characterized, Ophiocoma sp. NB (Northeastern Brazil) and Ophiocoma sp. TMV (Trindade and Martin Vaz Archipelago), and subsequently thoroughly analysed to confirm whether they were the same species or not. After the morphological studies, including external morphology, morphometry and microstructural characters, and analysis of molecular data, involving the 16S gene, it was concluded that Ophiocoma sp. NB and Ophiocoma sp. TMV do not correspond to the same species, the first being identified as Ophiocoma echinata (Lamarck, 1816) and the latter being a new species. This new species is characterized by two tentacle scales on the first arm segment and then one on all following segments, and the dorsalmost arm spines are robust and rounded, as wide as long or almost as wide as long.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S0025315423000383</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0003-0656-6526</orcidid><orcidid>https://orcid.org/0000-0001-9732-4877</orcidid></addata></record> |
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| subjects | Archipelagoes Coasts Coral reefs Developmental stages Discriminant analysis Electron microscopes Marine invertebrates Marine Record Microscopy Morphology Morphometry Museums New species Ophiocoma Ophiocoma echinata Ophiuroidea Physical characteristics Segments Shallow water Spines Taxonomy Tentacles Tropical environment Tropical environments Vertebrae Zoology |
| title | A new species of Ophiocoma (Echinodermata: Ophiuroidea) from Archipelago Trindade and Martin Vaz, Southeastern Atlantic, and redescription of Ophiocoma echinata |
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