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Gephyrocharax machadoi, a new species of Stevardiinae (Characiformes: Characidae) from the Rio Paraguai basin, central Brazil

dc.contributor.authorFerreira, Katiane M.
dc.contributor.authorDe Faria, Erika
dc.contributor.authorRibeiro, Alexandre C.
dc.contributor.authorSantana, Julio C. O.
dc.contributor.authorQuagio-Grassioto, Irani [UNESP]
dc.contributor.authorMenezes, Naercio A.
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-11-26T17:49:19Z
dc.date.available2018-11-26T17:49:19Z
dc.date.issued2018-04-27
dc.description.abstractGephyrocharax machadoi, new species, is described from tributaries of the rio Sepotuba, upper rio Paraguai basin, Mato Grosso state, Brazil. The new species is distinguished from its congeners, except Gephyrocharax major, by presenting two modified scales on the ventral caudal-fin lobe (pouch scales): a larger, sexually dimorphic scale, slightly superior and anterior in position, followed by a smaller, posterior and ventrally placed accessory scale (vs. a single modified pouch scale without ventrally placed accessory scales). Gephyrocharax machadoi differs from G. major by presenting a gap (more conspicuous in mature males than in mature females) between the second and third ventral procurrent caudal-fin rays (vs. second and third ventral procurrent caudal-fin rays near each other or fused distally); premaxilla with tricuspid teeth (vs. tetra-to pentacuspid teeth); and body depth 21.5-25.4% of SL (vs. 25.9-36.8% in SL). Spermiogenesis and spermatozoa morphology are also described.en
dc.description.affiliationUniv Fed Mato Grosso, Inst Biociencias, Dept Biol & Zool, Lab Ictiol, Av Fernando Correia da Costa 2367, BR-78060900 Cuiaba, MT, Brazil
dc.description.affiliationUniv Fed Mato Grosso, Programa Posgrad Ecol & Conservacao Biodiversidad, Cuiaba, MT, Brazil
dc.description.affiliationUniv Estadual Campinas, Inst Biol, R Monteiro Lobato 255,Cidade Univ, BR-13083862 Campinas, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Dept Morfol, Caixa Postal 510, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Museu Zool, Caixa Postal 42694, BR-04299970 Sao Paulo, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Dept Morfol, Caixa Postal 510, BR-18618000 Botucatu, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 07/52756-0
dc.format.extent161-172
dc.identifierhttp://dx.doi.org/10.11646/zootaxa.4415.1.8
dc.identifier.citationZootaxa. Auckland: Magnolia Press, v. 4415, n. 1, p. 161-172, 2018.
dc.identifier.doi10.11646/zootaxa.4415.1.8
dc.identifier.issn1175-5326
dc.identifier.urihttp://hdl.handle.net/11449/164153
dc.identifier.wosWOS:000431357600008
dc.language.isoeng
dc.publisherMagnolia Press
dc.relation.ispartofZootaxa
dc.relation.ispartofsjr0,259
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectStevardiini
dc.subjectGephyrochrax major
dc.subjectpouch scale
dc.subjectrio Sepotuba
dc.subjectspermatozoa morphology
dc.titleGephyrocharax machadoi, a new species of Stevardiinae (Characiformes: Characidae) from the Rio Paraguai basin, central Brazilen
dc.typeArtigo
dcterms.rightsHolderMagnolia Press
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Botucatupt
unesp.departmentMorfologia - IBBpt

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