Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)

Autores
Ruocco, Natalia Lorena; Lucifora, Luis Omar; Díaz de Astarloa, Juan Martín; Mabragaña, Ezequiel; Delpiani, Sergio Matias
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two species of Myliobatis, the southern eagle ray M. goodei Garman and the bullnose eagle ray M. freminvillii Le Sueur, have long been recognized to occur in coastal Argentinean waters. Several unusual specimens belonging to the family Myliobatidae, have been recently collected from off the Buenos Aires Province, Argentina. These specimens clearly belong to the genus Myliobatis, since they have a broad disk with long sharply pointed pectoral fins, a projecting snout, tail very long and thin, and smaller dorsal fin set farther back on the tail, well beyond the pelvic fins. However, the specimens were distinct from all their sympatric congeners in several characters, and they are described here as a new species. Myliobatis ridens sp. nov. is distinguished from M. goodei in having a relatively shorter snout, a wider interorbital space, a wider mouth, and a different shape in the ventral and dorsal marginal cartilages of the claspers than the latter; and from M. freminvillii by having smaller eyes, a smaller dorsal fin, a plain dorsal coloration, and a different shape of the dorsal marginal cartilage of the claspers. In order to test this morphological differentiation, cytochrome c oxidase I (COI) sequence data were obtained from the new species and compared with those of its congeners. Analysis of COI sequences showed a congeneric sequence divergence higher than 6%, supporting the species differentiation. Therefore combining both, traditional taxonomy and DNA barcoding, a new eagle ray species, Myliobatis ridens sp. nov., from the Southwest Atlantic Ocean was discovered.
Fil: Ruocco, Natalia Lorena. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lucifora, Luis Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentina. Centro de Investigaciones del Bosque Atlántico; Argentina
Fil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Mabragaña, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Delpiani, Sergio Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Materia
Elasmobranchii
Myliobatis
cytochrome c oxidase I gene
Argentina
Brazil
Uruguay
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/273160
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/273160
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)Ruocco, Natalia LorenaLucifora, Luis OmarDíaz de Astarloa, Juan MartínMabragaña, EzequielDelpiani, Sergio MatiasElasmobranchiiMyliobatiscytochrome c oxidase I geneArgentinaBrazilUruguayhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Two species of Myliobatis, the southern eagle ray M. goodei Garman and the bullnose eagle ray M. freminvillii Le Sueur, have long been recognized to occur in coastal Argentinean waters. Several unusual specimens belonging to the family Myliobatidae, have been recently collected from off the Buenos Aires Province, Argentina. These specimens clearly belong to the genus Myliobatis, since they have a broad disk with long sharply pointed pectoral fins, a projecting snout, tail very long and thin, and smaller dorsal fin set farther back on the tail, well beyond the pelvic fins. However, the specimens were distinct from all their sympatric congeners in several characters, and they are described here as a new species. Myliobatis ridens sp. nov. is distinguished from M. goodei in having a relatively shorter snout, a wider interorbital space, a wider mouth, and a different shape in the ventral and dorsal marginal cartilages of the claspers than the latter; and from M. freminvillii by having smaller eyes, a smaller dorsal fin, a plain dorsal coloration, and a different shape of the dorsal marginal cartilage of the claspers. In order to test this morphological differentiation, cytochrome c oxidase I (COI) sequence data were obtained from the new species and compared with those of its congeners. Analysis of COI sequences showed a congeneric sequence divergence higher than 6%, supporting the species differentiation. Therefore combining both, traditional taxonomy and DNA barcoding, a new eagle ray species, Myliobatis ridens sp. nov., from the Southwest Atlantic Ocean was discovered.Fil: Ruocco, Natalia Lorena. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lucifora, Luis Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentina. Centro de Investigaciones del Bosque Atlántico; ArgentinaFil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Mabragaña, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Delpiani, Sergio Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaAcademia Sinica2012-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/273160Ruocco, Natalia Lorena; Lucifora, Luis Omar; Díaz de Astarloa, Juan Martín; Mabragaña, Ezequiel; Delpiani, Sergio Matias; Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae); Academia Sinica; Zoological Studies; 51; 6; 11-2012; 862-8731021-5506CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://zoolstud.sinica.edu.tw/Journals/51.6/862.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:06:34Zoai:ri.conicet.gov.ar:11336/273160instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:06:34.835CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
title Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
spellingShingle Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
Ruocco, Natalia Lorena
Elasmobranchii
Myliobatis
cytochrome c oxidase I gene
Argentina
Brazil
Uruguay
title_short Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
title_full Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
title_fullStr Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
title_full_unstemmed Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
title_sort Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae)
dc.creator.none.fl_str_mv Ruocco, Natalia Lorena
Lucifora, Luis Omar
Díaz de Astarloa, Juan Martín
Mabragaña, Ezequiel
Delpiani, Sergio Matias
author Ruocco, Natalia Lorena
author_facet Ruocco, Natalia Lorena
Lucifora, Luis Omar
Díaz de Astarloa, Juan Martín
Mabragaña, Ezequiel
Delpiani, Sergio Matias
author_role author
author2 Lucifora, Luis Omar
Díaz de Astarloa, Juan Martín
Mabragaña, Ezequiel
Delpiani, Sergio Matias
author2_role author
author
author
author
dc.subject.none.fl_str_mv Elasmobranchii
Myliobatis
cytochrome c oxidase I gene
Argentina
Brazil
Uruguay
topic Elasmobranchii
Myliobatis
cytochrome c oxidase I gene
Argentina
Brazil
Uruguay
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Two species of Myliobatis, the southern eagle ray M. goodei Garman and the bullnose eagle ray M. freminvillii Le Sueur, have long been recognized to occur in coastal Argentinean waters. Several unusual specimens belonging to the family Myliobatidae, have been recently collected from off the Buenos Aires Province, Argentina. These specimens clearly belong to the genus Myliobatis, since they have a broad disk with long sharply pointed pectoral fins, a projecting snout, tail very long and thin, and smaller dorsal fin set farther back on the tail, well beyond the pelvic fins. However, the specimens were distinct from all their sympatric congeners in several characters, and they are described here as a new species. Myliobatis ridens sp. nov. is distinguished from M. goodei in having a relatively shorter snout, a wider interorbital space, a wider mouth, and a different shape in the ventral and dorsal marginal cartilages of the claspers than the latter; and from M. freminvillii by having smaller eyes, a smaller dorsal fin, a plain dorsal coloration, and a different shape of the dorsal marginal cartilage of the claspers. In order to test this morphological differentiation, cytochrome c oxidase I (COI) sequence data were obtained from the new species and compared with those of its congeners. Analysis of COI sequences showed a congeneric sequence divergence higher than 6%, supporting the species differentiation. Therefore combining both, traditional taxonomy and DNA barcoding, a new eagle ray species, Myliobatis ridens sp. nov., from the Southwest Atlantic Ocean was discovered.
Fil: Ruocco, Natalia Lorena. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lucifora, Luis Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentina. Centro de Investigaciones del Bosque Atlántico; Argentina
Fil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Mabragaña, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Delpiani, Sergio Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
description Two species of Myliobatis, the southern eagle ray M. goodei Garman and the bullnose eagle ray M. freminvillii Le Sueur, have long been recognized to occur in coastal Argentinean waters. Several unusual specimens belonging to the family Myliobatidae, have been recently collected from off the Buenos Aires Province, Argentina. These specimens clearly belong to the genus Myliobatis, since they have a broad disk with long sharply pointed pectoral fins, a projecting snout, tail very long and thin, and smaller dorsal fin set farther back on the tail, well beyond the pelvic fins. However, the specimens were distinct from all their sympatric congeners in several characters, and they are described here as a new species. Myliobatis ridens sp. nov. is distinguished from M. goodei in having a relatively shorter snout, a wider interorbital space, a wider mouth, and a different shape in the ventral and dorsal marginal cartilages of the claspers than the latter; and from M. freminvillii by having smaller eyes, a smaller dorsal fin, a plain dorsal coloration, and a different shape of the dorsal marginal cartilage of the claspers. In order to test this morphological differentiation, cytochrome c oxidase I (COI) sequence data were obtained from the new species and compared with those of its congeners. Analysis of COI sequences showed a congeneric sequence divergence higher than 6%, supporting the species differentiation. Therefore combining both, traditional taxonomy and DNA barcoding, a new eagle ray species, Myliobatis ridens sp. nov., from the Southwest Atlantic Ocean was discovered.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/273160
Ruocco, Natalia Lorena; Lucifora, Luis Omar; Díaz de Astarloa, Juan Martín; Mabragaña, Ezequiel; Delpiani, Sergio Matias; Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae); Academia Sinica; Zoological Studies; 51; 6; 11-2012; 862-873
1021-5506
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273160
identifier_str_mv Ruocco, Natalia Lorena; Lucifora, Luis Omar; Díaz de Astarloa, Juan Martín; Mabragaña, Ezequiel; Delpiani, Sergio Matias; Morphology and DNA barcoding reveal a new species of eagle ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes, Myliobatiformes, Myliobatidae); Academia Sinica; Zoological Studies; 51; 6; 11-2012; 862-873
1021-5506
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://zoolstud.sinica.edu.tw/Journals/51.6/862.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academia Sinica
publisher.none.fl_str_mv Academia Sinica
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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