microcephalus, Astyanax Miranda Ribeiro [A. de] 1908:[3] [Kosmos, Rio de Janeiro [Rev. Art. Sci. Litt.] v. 5 (no. 2) (for 1907); ref. 3715] Rio Bethary [Betari], tributary of Rio Ribeira, Brazil. Lectotype: MNRJ 2576A. Paralectotypes: MNRJ 2576 (1). Type catalog: Miranda Ribeiro 1955:396 [ref. 12732]. Lectotype selected by Miranda Ribeiro 1953:396 [ref. 12732] [but perhaps specimen not isolated]; same specimen also selected by Bizerril & Perez-Neto 1995:15 [ref. 22473]. •Valid as Bryconamericus microcephalus (Miranda Ribeiro 1908) -- (Bizerril & Perez-Neto 1995:15 [ref. 22473], Román-Valencia 2003:24 [ref. 26840], Silva in Reis et al. 2003:117 [ref. 27061], da Silva 2004:55 [ref. 27870], Langeani et al. 2005:389 [ref. 28234], Dagosta & Netto-Ferreira 2015:440 [ref. 33665], Thomaz et al. 2015:Add. 5 [ref. 33893], Reis et al. 2020:460 [ref. 38364], Pedroso et al. 2024:14 [ref. 40856]). Current status: Valid as Bryconamericus microcephalus (Miranda Ribeiro 1908). Stevardiidae: Diapominae. Distribution: South America: Ribeira de IguapĂ© River basin (Brazil). Habitat: freshwater.
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