madeirae, Tyttocharax Fowler [H. W.] 1913:564, Fig. 20 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 65; ref. 1389] Rio Madeira tributary, near Porto Velho, Brazil (about 8°45'S, 63°55'W). Holotype: ANSP 39305. Paratypes: ANSP 39306 (1) USNM 92961 (1) [see p. 108, ref. 5203]. Type catalog: Böhlke 1984:50 [ref. 13621]. •Valid as Tyttocharax madeirae Fowler 1913 -- (Weitzman & Fink 1985:109 [ref. 5203], Weitzman & Ortega 1995:134 [ref. 21874], Chang & Ortega 1995:3 [ref. 24302], Weitzman & Burns 1997:136 [ref. 24512], Weitzman in Reis et al. 2003:228 [ref. 27061], Román-Valencia et al. 2012:519 [ref. 32203], Barriga Salazar 2014:109 [ref. 35745] as Tythocharax, Sarmiento et al. 2014:185 [ref. 35004], Thomaz et al. 2015:Add. 5 [ref. 33893], DoNascimiento et al. 2017:54 [ref. 35633], Meza-Vargas et al. 2021:20 [ref. 39298], Menezes & Camelier 2024:284 [ref. 40817]). Current status: Valid as Tyttocharax madeirae Fowler 1913. Stevardiidae: Xenurobryconinae. Distribution: South America: Amazon River basin (Brazil, Ecuador, Colombia, Peru and Bolivia). Habitat: freshwater.