Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae)
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1139/cjz-2022-0136 http://hdl.handle.net/11449/247270 |
Resumo: | Two new miniature tetra species of the Neotropical characid genus Priocharax Weitzman and Vari, 1987 are described, raising the known species diversity to seven. Both species occur in the Rio Juruá system, Cruzeiro do Sul municipality, Acre State, Brazil. Priocharax toledopizae sp. nov. occurs in streams flowing to the lower Rio Moa, a tributary of Rio Juruá, and is distinguished from congeners by a combination of presence of claustrum and infraorbitals 1 and 2, absence of infraorbital 3, and presence of five branched pelvic-fin rays. Priocharax marupiara sp. nov. is known from Igarapé Canela Fina, tributary of Rio Juruá, and is diagnosed by a combination of fewer maxillary teeth (21–27 vs. 27–58 in remaining species), fewer branched anal-fin rays (18–23 vs. 22–27 in two species) and colour pattern. Both species differ from each other in the general body shape: Priocharax toledopizae is more robust with deep body and Priocharax marupiara more elongate. DNA barcode data support the specific distinctness of the two new species and that of the other five species in the genus. We describe a remarkable sexual dimorphism of the pelvic girdle of Priocharax toledopizae in which the pelvic musculature is enlarged forming a pedicel for the fin in mature males. Most localities where these species were found suffer from significant degradation mainly due to litter accumulation and suppression of the riparian forest, raising concerns about their conservation status. |
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Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae)anatomyDNA barcodeintegrative taxonomyminiature tetraNeotropicssystematicsTwo new miniature tetra species of the Neotropical characid genus Priocharax Weitzman and Vari, 1987 are described, raising the known species diversity to seven. Both species occur in the Rio Juruá system, Cruzeiro do Sul municipality, Acre State, Brazil. Priocharax toledopizae sp. nov. occurs in streams flowing to the lower Rio Moa, a tributary of Rio Juruá, and is distinguished from congeners by a combination of presence of claustrum and infraorbitals 1 and 2, absence of infraorbital 3, and presence of five branched pelvic-fin rays. Priocharax marupiara sp. nov. is known from Igarapé Canela Fina, tributary of Rio Juruá, and is diagnosed by a combination of fewer maxillary teeth (21–27 vs. 27–58 in remaining species), fewer branched anal-fin rays (18–23 vs. 22–27 in two species) and colour pattern. Both species differ from each other in the general body shape: Priocharax toledopizae is more robust with deep body and Priocharax marupiara more elongate. DNA barcode data support the specific distinctness of the two new species and that of the other five species in the genus. We describe a remarkable sexual dimorphism of the pelvic girdle of Priocharax toledopizae in which the pelvic musculature is enlarged forming a pedicel for the fin in mature males. Most localities where these species were found suffer from significant degradation mainly due to litter accumulation and suppression of the riparian forest, raising concerns about their conservation status.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Laboratório de Ictiologia de Sorocaba Departamento de Biologia Universidade Federal de São Carlos, São PauloSenckenberg Natural History Collections Dresden Museum of ZoologyDepartamento de Biologia Estrutural e Funcional Instituto de Biociências Universidade Estadual Paulista – Campus Botucatu, São PauloDepartamento de Ciências do Mar Instituto do Mar Universidade Federal de São Paulo, São PauloMuseu de Diversidade Biológica Universidade Estadual de Campinas, Caixa Postal 6109, São PauloDepartamento de Biologia Estrutural e Funcional Instituto de Biociências Universidade Estadual Paulista – Campus Botucatu, São PauloFAPESP: 2017/01970-4Universidade Federal de São Carlos (UFSCar)Museum of ZoologyUniversidade Estadual Paulista (UNESP)Universidade Federal de São Paulo (UNIFESP)Universidade Estadual de Campinas (UNICAMP)Mattox, George M.T.Britz, RalfSouza, Camila S. [UNESP]Casas, André L.S.Lima, Flávio C.T.Oliveira, Claudio [UNESP]2023-07-29T13:11:26Z2023-07-29T13:11:26Z2023-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article248-266http://dx.doi.org/10.1139/cjz-2022-0136Canadian Journal of Zoology, v. 101, n. 4, p. 248-266, 2023.1480-32830008-4301http://hdl.handle.net/11449/24727010.1139/cjz-2022-01362-s2.0-85154022601Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCanadian Journal of Zoologyinfo:eu-repo/semantics/openAccess2023-07-29T13:11:26Zoai:repositorio.unesp.br:11449/247270Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:24:54.719376Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
title |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
spellingShingle |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) Mattox, George M.T. anatomy DNA barcode integrative taxonomy miniature tetra Neotropics systematics |
title_short |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
title_full |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
title_fullStr |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
title_full_unstemmed |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
title_sort |
Two new species of miniature tetras of the fish genus Priocharax from the Rio Juruá drainage, Acre, Brazil (Teleostei: Characiformes: Characidae) |
author |
Mattox, George M.T. |
author_facet |
Mattox, George M.T. Britz, Ralf Souza, Camila S. [UNESP] Casas, André L.S. Lima, Flávio C.T. Oliveira, Claudio [UNESP] |
author_role |
author |
author2 |
Britz, Ralf Souza, Camila S. [UNESP] Casas, André L.S. Lima, Flávio C.T. Oliveira, Claudio [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) Museum of Zoology Universidade Estadual Paulista (UNESP) Universidade Federal de São Paulo (UNIFESP) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Mattox, George M.T. Britz, Ralf Souza, Camila S. [UNESP] Casas, André L.S. Lima, Flávio C.T. Oliveira, Claudio [UNESP] |
dc.subject.por.fl_str_mv |
anatomy DNA barcode integrative taxonomy miniature tetra Neotropics systematics |
topic |
anatomy DNA barcode integrative taxonomy miniature tetra Neotropics systematics |
description |
Two new miniature tetra species of the Neotropical characid genus Priocharax Weitzman and Vari, 1987 are described, raising the known species diversity to seven. Both species occur in the Rio Juruá system, Cruzeiro do Sul municipality, Acre State, Brazil. Priocharax toledopizae sp. nov. occurs in streams flowing to the lower Rio Moa, a tributary of Rio Juruá, and is distinguished from congeners by a combination of presence of claustrum and infraorbitals 1 and 2, absence of infraorbital 3, and presence of five branched pelvic-fin rays. Priocharax marupiara sp. nov. is known from Igarapé Canela Fina, tributary of Rio Juruá, and is diagnosed by a combination of fewer maxillary teeth (21–27 vs. 27–58 in remaining species), fewer branched anal-fin rays (18–23 vs. 22–27 in two species) and colour pattern. Both species differ from each other in the general body shape: Priocharax toledopizae is more robust with deep body and Priocharax marupiara more elongate. DNA barcode data support the specific distinctness of the two new species and that of the other five species in the genus. We describe a remarkable sexual dimorphism of the pelvic girdle of Priocharax toledopizae in which the pelvic musculature is enlarged forming a pedicel for the fin in mature males. Most localities where these species were found suffer from significant degradation mainly due to litter accumulation and suppression of the riparian forest, raising concerns about their conservation status. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:11:26Z 2023-07-29T13:11:26Z 2023-04-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1139/cjz-2022-0136 Canadian Journal of Zoology, v. 101, n. 4, p. 248-266, 2023. 1480-3283 0008-4301 http://hdl.handle.net/11449/247270 10.1139/cjz-2022-0136 2-s2.0-85154022601 |
url |
http://dx.doi.org/10.1139/cjz-2022-0136 http://hdl.handle.net/11449/247270 |
identifier_str_mv |
Canadian Journal of Zoology, v. 101, n. 4, p. 248-266, 2023. 1480-3283 0008-4301 10.1139/cjz-2022-0136 2-s2.0-85154022601 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Canadian Journal of Zoology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
248-266 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129317486460928 |