taxonID	type	description	language	source
03A38C0CFFFE60017639FB8DFC6DFF77.taxon	description	urn: lsid: zoobank. org: pub: 1 CA 65975 - F 89 B- 4 E 17 - A 8 BD- F 3 A 233 C 1388 F. urn: lsid: zoobank. org: act: F 02 CFC 3 A- EC 08 - 4 DD 4 - 9555 - FD 22 D 0 C 7 D 230.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFFE60017639FB8DFC6DFF77.taxon	materials_examined	Holotype: NUP 25700, 49.9 mm L S, Foz do IguaÇu, Paraná State, Brazil, Córrego Carlos Giovanni, tributary of Rio Sao ˜ Joao ˜, Rio IguaÇu basin, Lower Rio Paraná, 25 36 0 47.3 00 S, 54 25 0 52.2 00 W, 16 September 2023, B. H. M. Stabile, R. B. Reis, M. Z. Roloff, C. E. V. Grou, L. D. Lima, S. K. Utiyama & N. P. Lopes (Figure 1). Paratype: All from Brazil, Paraná State, tributary of Rio Sao ˜ Joao ˜, Rio IguaÇu basin, Lower Rio Paraná, municipality of Foz do IguaÇu: MCP 55324, 3, 39.3 – 49.6 mm L S, Córrego Carlos Giovanni, 25 36 0 46.4 00 S, 54 25 0 55.8 00 W, 18 April 2010, GERPEL staff. MZUEL 23751, 3, 38.0 – 51.7 mm L S, same data as MCP 55324. NUP 18068, 3, 34.8 – 40.6 mm L S, unknown name stream, 25 37 0 20.0 00 S, 54 26 0 53.0 00 W, 25 November 2014, GERPEL staff. NUP 24851, 1, 44.7 mm L S, mol, same data as holotype. NUP 25044, 1, 43.5 mm L S, mol, same data as holotype. NUP 25445, 4, 36.7 – 56.4 mm L S, same data as MCP 55324. NUP 25446, 4, 31.4 – 37.6 mm L S, Córrego Carlos Giovanni, 25 36 0 44.9 00 S, 54 25 0 53.7 00 W, 30 August 2010,	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFFE60017639FB8DFC6DFF77.taxon	description	GERPEL staff. NUP 25699, 2 (c & s), 38.4 – 45.07 mm L S, same data as NUP 18068.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7639F93FFB69FF77.taxon	description	Upper rio Paraná basin: MZUSP 125807 (Holotype), 40.1 mm L S, municipality of Brasília, Distrito Federal, Brazil, córrego Taquara at Reserva Ecológica do IBGE, tributary of ribeirão Gama, tributary of rio São Bartolomeu, 15 ° 54 ′ 55.04 ″ S 47 ° 54 ′ 23.87 ″ W, Melo, M. R. S. & Ribeiro, M. C. L. B., 14 November 2016.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7639FC35FDA2FB3D.taxon	description	Upper rio Paraná basin: NUP 1393 (Paratype), 45.3 – 50.0 mm L S, municipality of Jussara, Paraná, Brazil, rio Abelha, tributary of rio Ivaí, 23 ° 36 ′ S 52 ° 28 ′ W, Nupélia staff, 17 November 1994.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7639FB07FCCBFA30.taxon	description	Upper rio Paraná basin: NUP 1393 (Holotype), 24901, 47.9 mm L S, municipality of Jaguariaíva, Paraná, Brazil, unknown name stream, rio Itararé basin, 24 ° 29 ′ 34 ″ S, 49 ° 29 ′ 54 ″ W, GraÇa, W. J. et al., 19 July 2018.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7639FA0AFE6FF925.taxon	description	Rio Pardo basin: MZUSP 115000 (Holotype), 51.9 mm L s, municipality of Camacan, Bahia, Brazil, rio Panelão on the road between Camacan and Jacareci, tributary of rio Pardo, 15 ° 25 ′ 16 ″ S 39 ° 31 ′ 48 ″ W, Zanata, A. M. et al., 15 September 2013.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7571FECDFC2AFE68.taxon	description	Ribeira de Iguape basin: NUP 6712, 3, 38.3 – 50.0 mm L S, municipality of São Miguel Arcanjo, Ribeirão Temível, tributary of rioIpiranga, 24 º 7 ′ 36.00 ″ S 47 ° 59 ′ 29.00 ″ W, Zawadzki, C. H. & Oliveira, C. A. M., 19 February 2009.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7571FDF2FC5DFC87.taxon	description	Rio Uruguay basin: NUP 19088, 49, 11.4 – 36.9 mm L S, municipality of Alegrete, Arroio Carvonaraci, tributary of rio Ibicuí, 29 ° 43 ′ 14.16 ″ S 56 ° 5 ′ 29.04 ″ W, Deprá, G. C., Delvio, L. & Berriel, R., 12 February 2017. NUP 21952, 1, 25.0 mm L S, municipality of Itaqui, rio Ibicuí, 29 ° 24 ′ 38.00 ″ S 56 º 45 ′ 14.99 ″ W, Massaro, M. V., 29 July 2019.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7571FC5DFAA4FB95.taxon	description	Rio das Almas basin: MZUSP 108188 (Holotype), 46.6 mm L S, municipality of Piraí do Norte, rio do Peixe, tributary of rio das Almas, 13 ° 46 ′ 35 ″ S 39 ° 23 ′ 40 ″ W, Oyakawa, O. T. et al., 13 August 2012.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7571FBAFFBD0FA8F.taxon	description	Rio São Francisco basin: MZUSP 95289 (Paratype), 10, 36.3 – 41.8 mm L S, Córrego Curral das Éguas, at the border between mun. Três Marias and São GonÇalo do Abaeté, 18 ° 07 ′ 13 ″ S 45 ° 24 ′ 52 ″ W, Oyakawa, O. T. et al., 3 October 2007.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7571F9A7FC59F838.taxon	description	Upper rio Paraná basin: NUP 21021, 1, 43.7 mm L S, municipality of Jaguariaíva, rio das Samambaias, tributary to rio Jaguariaíva, 24 ° 10 ′ 43.68 ″ S 49 ° 36 ′ 55.8 ″, GraÇa, W. J. et al., 17 July 2018. NUP 21072, 1, 60.9 mm L S, municipality of Jaguariaíva, rio das LanÇas, tributary to rio Jaguariaíva, 24 ° 10 ′ 43.68 ″ S 49 ° 36 ′ 55.8 ″ W, GraÇa, W. J. et al., 19 July 2018.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF4600B7571FA55FB9BF99D.taxon	description	Rio Uruguay basin: NUP 20570, 1, 40.0 mm L S, municipality of Porto Vera Cruz, rio Uruguay, 27 ° 42 ′ 01 ″ S 54 ° 53 ′ 47 ″ W, Massaro, M. & Tataje, D., 15 November 2017.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF5600A7639FC7FFD30FA75.taxon	description	Rio IguaÇu basin: MZUSP 85940 (Holotype), 33.8 mm L S, municipality of Reserva do IguaÇu, rio das Torres, a small tributary of rio Jordão, 25 ° 48 ′ 28 ″ S, 51 ° 59 ′ 01 ″ W, Moreira, C. R., 10 January 2001. NUP 18877, 2, 49.4 – 53.7 mm L S, municipality of Inácio Martins, riacho Lageado, tributary to rio Iratim, 25 ° 30 ′ 5 ″ S, 51 ° 10 ′ 10 ″ W, GraÇa, W. J, 04 October 2015. NUP 19033, 1, 47.0 mm L S, municipality of Cascavel, rio Tormenta, tributary to rio IguaÇu, 25 ° 06 ′ 09 ″ S, 53 ° 08 ′ 10 ″ W, Delariva, R. L., 04 October 2015. NUP 24862, 1, 47.82 mm L S, municipality of Reserva do IguaÇu, rio Lageado das Torres, tributary to rio Jordão, 25 ° 50 ′ 28.02 ″ S, 51 ° 50 ′ 29.96 ″ W, GraÇa W. J. et al., 04 October 2015. Rio Ribeira de Iguape basin: MZUSP 68132 (Paratype), 12, 34.8 – 42.5 mm L S, municipality of Quatro Barras, rio Taquari, tributary of rio Capivari, 2 km ahead of Morada do Silêncio Chaminé da Serra da Ordem Rosa Cruz, 25 ° 20 ′ 20 ″ S, 48 ° 55 ′ 46 ″ W, Oyakawa O. T. et al., 10 March 2001.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF5600A7639FF52FEFEFEFD.taxon	description	Rio Madeira basin: MZUSP 116954 (Holotype), 34.5 mm L S, municipality of Guajará‐ Mirim, upper rio Pacaás Novos, tributary of rio Mamoré, 10 ° 50 ′ 46.29 ″ S 63 ° 37 ′ 47.29 ″ W, Hungria D. & Ribeiro, A. C., 17 December 2013.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF5600A7639FE47FDF4FDF0.taxon	description	Rio Parnaíba basin: MZUSP 87516, 8, 12.95 – 26.94 mm L S, municipality of Balsas, Ribeirão Jenipapo, tributary of rio Balsas, 7 ° 28 ′ 04 ″ S 46 ° 09 ′ 36 ″ W, Akama A. & Baena E., 24 March 2005.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF5600A7639FD4AFF19FCE5.taxon	description	Rio Uruguay basin: NUP 19078, 3, 15.0 – 25.8 mm L S, municipality of Alegrete, Arroio Carvonaraci, tributary of rio Ibicuí, 29 ° 24 ′ 38.00 ″ S 56 ° 45 ′ 14.99 ″ W, Deprá, G. C.; Delvio, L.; Berriel, R., 12 February 2017.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
03A38C0CFFF5600A7639F9CFFF1FF96F.taxon	description	Upper rio Paraná basin: NUP 4414 (Paratype), 15, 32.8 – 40.4 mm L S, municipality of Corumbaíba, córrego Gameleira, tributary to left margin of rio Corumbá, 17 ° 59 ′ S 48 ° 29 ′ W, Nupélia staff, 12 October 1996.	en	Stabile, Bruno H. M., dos Reis, Weferson J. da Graça Renan B., de Oliveira, Alessandra V. (2025): A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. Journal of Fish Biology 107 (2): 454-465, DOI: 10.1111/jfb.70035, URL: https://doi.org/10.1111/jfb.70035
