v. 24, n. 3,
July / September 2026
Revealing hidden diversity through iterative approaches: eight new species of Cambeva (Siluriformes: Trichomycteridae) from the highly endemic rio Iguaçu basin
Renan B. dos Reis, Bruno H. M. Stabile, Alessandra V. Oliveira,
Juliano Ferrer and Weferson J. da Graça
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Taxonomic reassessment of Odontostilbe paraguayensis and description of a new species of Odontostilbe (Characidae: Cheirodontinae) with a small geographic distribution
Junior Chuctaya, Cristina Bührnheim and Luiz R. Malabarba
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A common but poorly described species of the genus Pimelodella (Siluriformes: Heptapteridae) from southeastern South America
Miguel Ángel Cortés-Hernández, Veronica Slobodian, Edna Judith Márquez Fernández, Gastón Aguilera and Juan Marcos Mirande
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Tracing sewage-derived organic matter in fish trophic pathways in the lower Doce River basin, Brazil
Patrícia Santos Fráguas, Débora Reis de Carvalho, Frederico Fernandes Ferreira, Carlos Frankl Sperber and Paulo Santos Pompeu
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Fish life-history diversity in Madeira River: linking traits, phylogeny, and environment
Alessandra Pasian Lonardoni, Cristhiana Paula Röpke, Ariana Cella-Ribeiro, Marilia Hauser and Gislene Torrente-Vilara
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Past connection and isolation of Rineloricaria (Siluriformes: Loricariidae) across southeastern Brazilian coastal drainages: evidence for palaeodrainage connectivity and description of a new species
Eduardo Mejia and Paulo A. Buckup
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Spatial ecology of the southern hagfish Myxine australis (Myxiniformes: Myxinidae) in central Patagonia, Southwestern Atlantic
Kevin Josue Jacobi, Pablo Daniel Cochia, Nelson Darío Bovcon, Ximena Navoa and David Edgardo Galván
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Cryptic lineages in Neotropical freshwaters: an integrative approach reveals a new species of Megalonema (Siluriformes: Pimelodidae) from the upper Paraná River basin
Oscar Akio Shibatta, Hugo Sum de Souza-Filho and
Lenice Souza-Shibatta
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Three new species of cloud fish of genus Hypsolebias (Cyprinodontiformes: Rivulidae) from rio São Francisco basins, Northeast Brazil
Dalton Tavares Bressane Nielsen, Thomas Yoshinaga, Fabio Origuela de Lira and Márcio Joaquim da Silva
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Resilience despite overfishing? Microsatellites reveal high genetic diversity and connectivity for Umbrina canosai (Acanthuriformes: Sciaenidae) in the Southwestern Atlantic
Davi M. Vasconcellos, Ana Luzia Lacerda, Maíra Carneiro Proietti and Manuel Haimovici
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Changes in the taxonomic and functional composition of fishes along the altitudinal gradient of the Piedmont-Lowland in the Meta River basin
Laura Montagut-Rojas, Fabrício Barreto Teresa and
Tiago Pinto Carvalho
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Stable isotope and stomach content evidence of trophic overlap between invasive lionfish and native mesopredatory reef fishes in the Mexican Caribbean
Alfrancis Teresa Arredondo-Chávez, Arely Ramírez-García, José Adán Caballero-Vázquez, Carlos Alberto Niño-Torres and Omar Domínguez-Domínguez
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Description of a new species of Moenkhausia (Characiformes: Acestrorhamphidae) from tributaries of rio Tapajós basin at Serra do Cachimbo, Pará State, Brazil
Priscila Camelier and Manoela Maria Ferreira Marinho
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Morphological diversification of defensive glands in Corydoradinae catfishes indicates a mixed Müllerian-Batesian mimicry system
Camilo R. Jiménez-Vergara, Andréa Tonolli Thomaz, Angélica J. Garzón-Restrepo, Luiz R. Malabarba and Mario Monroy
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Environmental modulation of oogenesis and estradiol dynamics in the Neotropical migratory fish Prochilodus magdalenae (Characiformes: Prochilodontidae)
Eduardo Hernández-Hernández, Ricardo Oliveros-Ramos, Leandro Miranda, Antonio García-Fernández and Oswaldo Tovar-Bohórquez
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Hidden in the rapids: a new species of Leporinus (Characiformes: Anostomidae) endemic to the Xingu River basin, Brazil
Claudia Sousa Chaves, Lenice Souza-Shibatta, José L. O. Birindelli and Leandro Melo de Sousa
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The uniform, the banded, and the polymorphic: an integrative taxonomy in the annual fish Acantholebias (Atheriniformes: Rivulidae)
Alejandro Duarte, Marcelo Loureiro, Néstor Ríos, Wilson Serra, José Bessonart and Graciela García
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A new species of diminutive spiny driftwood catfish Spinipterus (Siluriformes: Auchenipteridae) from the Madeira River system, Amazon basin, Brazil
Bárbara B. Calegari, Willian M. Ohara, Alberto Akama and Jansen Zuanon
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A new species of Peckoltia (Siluriformes: Loricariidae) from the rapids of rio Trombetas basin, Brazil
Manuela Dopazo, Felipe Arian de Andrade Araújo, Alberto Akama and Wolmar Benjamin Wosiacki
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A new species of the electric fish genus Gymnotus (Gymnotiformes: Gymnotidae) from rio Barra Seca, a coastal basin in the southeastern Brazil
Vinicius C. C. Cassaro, Marco P. Gonçalves, Ricardo Campos-da-Paz, Guilherme Moreira Dutra and Aléssio Datovo
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