v. 23, n. 3,

July / September 2025

A new species of Moenkhausia (Characiformes: Acestrorhamphidae) from the Amazon basin at Serra do Cachimbo, Pará, Brazil

José Igor da Silva, Yasmim de Santana and Manoela Maria Ferreira Marinho

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Restricted to oceanic and coastal islands? The absence of lemon sharks (Negaprion brevirostris) along the Brazilian coast

José Victor Calenzani, Jorge Luiz Silva Nunes, Tiego Luiz de Araújo Costa, Bruno Jucá-Queiroz and Jones Santander-Neto

PDF: EN XML: EN | Supplementary: S1

A big task for a miniature species: understanding Fluviphylax simplex (Cyprinodontiformes: Fluviphylacidae) distribution

Dhállyth Zaínny Pereira Silva, Felipe Polivanov Ottoni, Cleonilde da Conceição Silva Queiroz and Pedro Henrique Negreiros de Bragança

PDF: EN XML: EN | Supplementary: S1

A new Hyphessobrycon (Characiformes: Acestrorhamphidae) from the rio Mamuru basin, Amazonas State, Brazil

Tiago C. Faria, Claudio Oliveira, Iann Leonardo Pinheiro Monteiro and Flávio César Thadeo de Lima

PDF: EN XML: EN | Supplementary: S1 S2

Reproductive biology of the gray triggerfish Balistes capriscus (Tetraodontiformes: Balistidae) in southeastern Brazil as a tool for fisheries management

Jones Santander-Neto, Nádia Ortolan da Vitória, Henrique David Lavander and Andressa C. M. de Melo

PDF: EN XML: EN | Supplementary: S1 S2 S3

Cytogenetic and molecular identification of Chaetostoma bifurcum (Siluriformes: Loricariidae) from the Pacific Coast of Ecuador

Mauro Nirchio, Marcelo de Bello Cioffi, Francisco de Menezes Cavalcante Sassi, Geize Aparecida Deon, Claudio Oliveira, Mariana Kuranaka, Jonathan Valdiviezo-Rivera and Anna Rita Rossi

PDF: EN XML: EN | Supplementary: S1 S2 S3

Assessment of histological changes caused by the trematode Tylodelphys sp. in the central nervous system of Galaxias maculatus

Paulina Rivera, Ruby López-Rodríguez, Daniela Mardones, Nicole Coline and Konrad Górski

PDF: EN XML: EN | Supplementary: S1

A new karyotype and a molecular phylogeny of Lebiasinidae (Teleostei: Characiformes) shed light on the chromosomal evolution of the family

Renata Luiza Rosa de Moraes, Fernando Henrique Santos de Souza, Geize Aparecida Deon, Manoela Maria Ferreira Marinho, Marcelo de Bello Cioffi and Francisco de Menezes Cavalcante Sassi

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An ode to beauty: the discovery of one of the most spectacular tetras (Characiformes: Acestrorhamphidae) – a new species of Inpaichthys from the rio Juruena, Brazil

Fernando Cesar Paiva Dagosta

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Essential oils from leaves of Pilocarpus pennatifolius and Cordia verbenacea in silver catfish (Rhamdia quelen): cardiovascular aspects and participation of the GABAergic system in the sedative and anesthetics effects

Carlos Herminio Magalhães Fortes, Bernardo Baldisserotto, Frederico Dimas Fleig, Valério Valdetar Marques Portela Júnior and Berta Maria Heinzmann

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Research goals of special concern for Carcharhinus leucas (Carcharhiniformes: Carcharhinidae) in Latin America – biological, distributional, and conservation priorities

Peter Gausmann, Philip Matich and Nadia Sandoval Laurrabaquio-Alvarado

PDF: EN XML: EN | Supplementary: S1 S2 S3 S4

Who dares to clean the Atlantic goliath grouper? Ecological relationships involving Epinephelus itajara

José A. C. C. Nunes, Áthila A. Bertoncini, Daniela P. Coelho, Yuri Costa, Leonardo S. Bueno, Márcio J. C. A. Lima-Jr, Johnatas Adelir-Alves, Jonas R. Leite, Maíra Borgonha, Manoela Leitão, Igor E. G. Pinheiro, Sabrina S. Palma, Lucas C. Ribeiro, Sara B. Kennedy, Matheus O. Freitas, Maurício Hostim-Silva and Cláudio L. S. Sampaio

PDF: EN XML: EN | Supplementary: S1 S2 S3 S4 S5

Another piece to the Hoplisoma paleatum puzzle, with a discussion on the monophyly of Hoplisoma

Luiz F. C. Tencatt, Angelica C. Dias, Steven Grant, Sérgio A. Santos, Vandergleison de Carvalho, Gabriel de Souza da Costa Silva, Fabio F. Roxo, Marcelo R. Britto, Martin I. Taylor and Claudio Oliveira

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A remarkable new Characidium (Characiformes: Crenuchidae) from tributaries of río Marañón, Loreto, Peru, with unique fin bony processes in both sexes

Angela Maria Zanata, Ricardo Britzke, Vanessa Meza-Vargas, Max H. Hidalgo, Dario Faustino-Fuster and Leonardo Oliveira-Silva

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A new species of Ituglanis (Siluriformes: Trichomycteridae) from the Uruguai River basin closely related to congeners from Atlantic coastal drainages

Nathana Bressan, Laura M. Donin and Juliano Ferrer

PDF: EN XML: EN | Supplementary: S1

Identification of fish eggs and larvae using a novel DNA metabarcoding approach

Gabriela O. Costa, André B. Nobile, Bruno F. Morales, Bruno C. Rossini, Diogo Freitas Souza, Érica A. Serrano Freitas and Claudio Oliveira

PDF: EN XML: EN | Supplementary: S1 S2

Description of larvae and juveniles of Brycon falcatus (Characiformes: Bryconidae) from the Tapajós River sub-basin, Brazil

Fabíola Katrine Souza da Silva-Cajado, Ruineris Almada Cajado, Lucas Silva de Oliveira, Zaqueu dos Santos, Lucélia Nobre Carvalho and Diego Maia Zacardi

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Two new species of the ornamental loricariid genus Baryancistrus (Siluriformes: Hypostominae) from rio Trombetas basin, Pará, Brazil

Renildo Ribeiro de Oliveira and Lúcia H. Rapp Py-Daniel

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Integrative study of Characidium borellii (Characiformes: Crenuchidae): phylogenetic relationships and geographic distribution

V. Ezequiel Méttola, Guillermo E. Terán, Gastón Aguilera, Martin M. Montes, Marina Ibáñez Shimabukuro, Felipe Alonso and J. Marcos Mirande

PDF: EN XML: EN | Supplementary: S1 S2 S3 S4 S5

Diet composition of the vulnerable fish species Megalops atlanticus (Elopiformes: Megalopidae) in a heavily urbanized estuary in Brazil: DNA-based identification of preys

Grazielly Bandeira Matias, Leonardo Mesquita Pinto, Ronaldo César Gurgel-Lourenço, Talita Camila E. Silva Nascimento, Denise Cavalcante Hissa and Jorge Iván Sánchez-Botero

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Two new species of Atlantirivulus (Cyprinodontiformes: Rivulidae) from Atlantic Forest biome, São Paulo State, Brazil

Eric Venturini Ywamoto, Dalton Tavares Bressane Nielsen and Claudio Oliveira

PDF: EN XML: EN | Supplementary: S1 S2

A new short-snouted species of Farlowella (Siluriformes: Loricariidae) from the upper Paraguai River basin

Manuela Dopazo, Gabriel de Carvalho Deprá, Cláudio Henrique Zawadzki and Marcelo Ribeiro de Britto

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Description of a new species of glass knifefish genus Eigenmannia (Gymnotiformes: Sternopygidae) from the rio Negro basin, Brazil

Maria Isabela Moreira Uliam, Helena Paulino Amorim Ribeiro and Guilherme Moreira Dutra

PDF: EN XML: EN | Supplementary: S1

Redescriptions of two little-known pimelodid catfishes from the São Francisco River basin, Brazil: Duopalatinus emarginatus and Bagropsis reinhardti (Teleostei: Siluriformes)

Marcelo Salles Rocha, John G. Lundberg, Paulo Santos Pompeu and Carlos Bernardo M. Alves

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Genetic and morphological analysis of Herichthys pantostictus (Cichliformes: Cichlidae) populations that showed mitochondrial DNA introgression

Omar Mejía, Fabian Pérez-Miranda and Amairany Bernal-Portillo

PDF: EN XML: EN | Supplementary: S1 S2 S3 S4 S5 S6 S7

Systematic assessment of the Hypomasticus steindachneri (Characiformes: Anostomidae) species complex, with the description of a new species

Ian Solon B. Ito, Lenice Souza-Shibatta, Osvaldo T. Oyakawa, Júlio C. Garavello, Heraldo A. Britski and José L. O. Birindelli

PDF: EN XML: EN | Supplementary: S1 S2 S3 S4

A new species of Mesonauta (Cichliformes: Cichlinae) from the Amapá Grande River basin, Northern Brazil

Rianne Caroline de Oliveira, Ricardo Britzke, Claudio Oliveira and Weferson Júnio da Graça

PDF: EN XML: EN | Supplementary: S1 S2 S3 S4