A new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae)

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dc.contributor.authorLima, Flvio C T
dc.contributor.authorBastos, Douglas A.
dc.contributor.authorPy-Daniel, Lcia H Rapp
dc.contributor.authorOta, Rafaela P.
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:52:59Z
dc.date.available2022-04-28T19:52:59Z
dc.date.issued2022-03-18
dc.description.abstractA new species of Hyphessobrycon presenting dimorphic males is described from the western Amazon basin in Brazil, Colombia, Ecuador, and Peru. The new species has been mistakenly identified in the literature with the non-congener Hemigrammus marginatus, with which shares a similar color pattern by presenting dark patches of dark pigmentation on caudal-fin lobes. It can be distinguished from the latter species, as well as from Hemigrammus durbinae, and two similar congeners, Hyphessobrycon diancistrus and Hy. otrynus, all of which sharing the same caudal fin color pattern, by the combination of presenting a dark patch of pigmentation on the dorsal fin, a single large anal-fin hook at the last unbranched anal-fin ray in mature males, and a moderately high body depth (22.432.5 % SL, mean 28.4 %). The new species is more similar to Hyphessobrycon diancistrus, which is putatively its closely related taxon. A putative close relationship with Hyphessobrycon otrynus, and with a non-congener presenting a distinct color pattern but sharing a similar sexual dimorphism on anal-fin hook morphology, Hemigrammus boesemani, is suggested.en
dc.description.affiliationSo Paulo, Museu de Zoologia da Universidade Estadual de Campinas Ado Jos Cardoso ,Caixa Postal 6109
dc.description.affiliationInstituto Nacional de Pesquisas da Amaznia, Programa de Colees, Coleo de Peixes. Av. Andr Arajo, 2936, 69060-001 Manaus, Amazonas, Brazil.. avizdoug@gmail.com
dc.description.affiliationInstituto Nacional de Pesquisas da Amaznia, Programa de Colees, Coleo de Peixes. Av. Andr Arajo, 2936, 69060-001 Manaus, Amazonas, Brazil.. luciarpd60@gmail.com
dc.description.affiliationDepartamento de Biologia Estrutural e Funcional, Instituto de Biocincias, Universidade Estadual Paulista Jlio de Mesquita Filho, Rua Prof. Dr. Antnio Celso Wagner Zanin, 250, 18618-689 Botucatu, So Paulo, Brazil.
dc.format.extent253-266
dc.identifierhttp://dx.doi.org/10.11646/zootaxa.5116.2.4
dc.identifier.citationZootaxa, v. 5116, n. 2, p. 253-266, 2022.
dc.identifier.doi10.11646/zootaxa.5116.2.4
dc.identifier.issn1175-5334
dc.identifier.scopus2-s2.0-85127760848
dc.identifier.urihttp://hdl.handle.net/11449/223781
dc.language.isoeng
dc.relation.ispartofZootaxa
dc.sourceScopus
dc.titleA new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae)en
dc.typeArtigo

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