Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the genus Nematocharax: [ 3 ] records

costai, Nematocharax Bragança [P. H. N.], Barbosa [M. A.] & Mattos [J. L. O.] 2013:4, Figs. 1-3 [Vertebrate Zoology v. 63 (no. 1); ref. 32664] Cambiriba Stream, Balneário Guaíro, Contas River basin, 14°36'16"S, 40°06'08"W, Municipio de Iguaí, Estado da Bahia, Brazil, altitude 347 meters. Holotype: UFRJ 8216. Paratypes: UFRJ 8215 (3), 8265 (1 c&s). •Synonym of Nematocharax venustus Weitzman, Menezes & Britski 1986 -- (Menezes et al. 2015:453 [ref. 33689], Barreto et al. 2018:1159 [ref. 36378], Camelier 2024:239 [ref. 40817]). Current status: Synonym of Nematocharax venustus Weitzman, Menezes & Britski 1986. Characidae: Stethaprioninae. Habitat: freshwater.

varii, Nematocharax Barreto [S. B.], Silva [A. T.], Batalha‐Filho [H.], Affonso [P. R. A. M.] & Zanata [A. M.] 2018:1154, Figs. 4, 6 [Journal of Fish Biology v. 93 (no. 6); ref. 36378] Água Suja River, at Balneário Rio da Barra, Caraguataí, upper Contas River basin, Bahia, Brazil, 13°24'14.5"S, 41°38'7.9"W, elevation 529 meters. Holotype: MZUSP 123176. Paratypes: MCP, MZUSP, UFBA. Plus additional non-type material. •Valid as Nematocharax varii Barreto, Silva, Batalha‐Filho, Affonso & Zanata 2018 -- (Silva et al. 2020:6 [ref. 37809], Camelier 2024:238 [ref. 40817]). Current status: Valid as Nematocharax varii Barreto, Silva, Batalha‐Filho, Affonso & Zanata 2018. Characidae: Stethaprioninae. Distribution: South America: upper Contas River basin (Bahia State, Brazil). Habitat: freshwater.

venustus, Nematocharax Weitzman [S. H.], Menezes [N. A.] & Britski [H. A.] 1986:336, Figs. 1-4 [Proceedings of the Biological Society of Washington v. 99 (no. 2); ref. 5984] Rio Jequitinhonha at Itaobim, Minas Gerais, Município Medina, Brazil, 16°40'S, 41°23'W. Holotype: MZUSP 5131. Paratypes: ANSP 157373 (2); BMNH 1985.11.10.1-2 (2); FMNH 96633 (2); MNRJ 11.285 (4); MZUSP 28480 (1), 28481-28509 (29), 28661-28689 (29), 28690 (79, not 80), 28811 (18); UMMZ 213448 (4); USNM 232955 (6, 2 c&s), 232956 (8, not 7), 270816 (now 15 or 14). Type catalog: Vari & Howe 1991:32 [ref. 19022], Oyakawa 1996:484-485 [ref. 23140]. •Valid as Nematocharax venustus Weitzman, Menezes & Britski 1986 -- (Malabarba in Reis et al. 2003:151 [ref. 27061], Mirande 2010:499 [ref. 31006], Branança et al. 2013:4 [ref. 32664], Menezes et al. 2015:453 [ref. 33689], Barreto et al. 2018:1152 [ref. 36378], Silva et al. 2020:6 [ref. 37809], Camelier 2024:239 [ref. 40817]). Current status: Valid as Nematocharax venustus Weitzman, Menezes & Britski 1986. Characidae: Stethaprioninae. Distribution: South America: coastal drainages of the north-eastern Atlantic Forest ecoregion (Brazil). Habitat: freshwater.