castroi, Rineloricaria Isbrücker [I. J. H.] & Nijssen [H.] 1984:93, Fig. 1 [Beaufortia v. 34 (no. 3); ref. 9845] Rio Trombetas, Trapiche da Reserva Biológica de Trombetas, Pará State, Brazil. Holotype (unique): MZUSP 15731. Type catalog: Ferraris 2007:245 [ref. 29155]. •Valid as Hemiloricaria castroi (Isbrücker & Nijssen 1984) -- (Isbrücker et al. 2001:23 [ref. 25649], Isbrücker 2001:27, 32 [ref. 25653], Isbrücker 2002:17 [ref. 27178], Ferraris 2007:245 [ref. 29155]). •Valid as Rineloricaria castroi Isbrücker & Nijssen 1984 -- (Burgess 1989:442 [ref. 12860], Ferraris in Reis et al. 2003:341 [ref. 27061], Sarmiento et al. 2014:192 [ref. 35004], DoNascimiento et al. 2017:78 [ref. 35633], Londoño-Burbano & Urbano-Bonilla 2018:382 [ref. 36212], Careaga et al. 2020:78 [ref. 37774], Urbano-Bonilla et al. 2023:6 [ref. 40346]). Current status: Valid as Rineloricaria castroi Isbrücker & Nijssen 1984. Loricariidae: Loricariinae. Distribution: South America: Amazon River basin (Brazil, Colombia and Bolivia). Habitat: freshwater.