DOS SANTOS OLIVEIRA, Rayssa Nayara; FIRMINO, Artur; SLOBODIAN, Veronica de Barros. Area of occurrence extension of Astyanax courensis Bertaco, Carvalho & Jerep, 2010, and Psalidodon goyanensis (Miranda-Ribeiro, 1944)(Characiformes: Acestrorhamphidae) with new records from tributaries in theStates of Goiás and the Federal District, Brazil. Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais, Belém, Pará, Brasil, v. 20, n. 3, p. 1–10, 2025. DOI: 10.46357/bcnaturais.v20i3.1048. Disponível em: https://boletimcn.museu-goeldi.br/bcnaturais/article/view/1048. Acesso em: 25 dec. 2025.