marmoratus, Sciades Gill [T. N.] 1870:95 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 22; ref. 17630] Río Marañon or Río Napo, Amazon system, Peru or Ecuador. Holotype: USNM 8447 (head and attached skin). Type catalog: Ferraris & Vari 1992:38 [ref. 19771] as possible holotype, Ferraris 2007:334 [ref. 29155] •Synonym of Leiarius longibarbis (Castelnau 1855) -- (Grant 2021:71 [ref. 38702]). •Valid as Leiarius marmoratus (Gill 1870) -- (Ortega & Vari 1986:14 [ref. 9708], Burgess 1989:282 [ref. 12860], Lundberg & Littmann in Reis et al. 2003:437 [ref. 27061], Ferraris 2007:334 [ref. 29155], Barriga Salazar 2014:114 [ref. 35745], Sarmiento et al. 2014:168, 192 [ref. 35004], DoNascimiento et al. 2017:93 [ref. 35633], Urbano-Bonilla et al. 2018:80 [ref. 35773], Meza-Vargas et al. 2021:23 [ref. 39298]). Current status: Valid as Leiarius marmoratus (Gill 1870). Pimelodidae. Distribution: South America: Amazon, Essequibo and Orinoco River basins (Bolivia, Brazil, Ecuador, Colombia, Peru and Venezuela). Habitat: freshwater.