exsudans, Pimelodus Jenyns [L.] 1842:111 [The zoology of the voyage of H. M. S. Beagle; ref. 2344] Apparently Rio de Janeiro, Brazil. Syntypes: (2) Dept. Zool., Univ. Cambridge V.132 (2) Type catalog: Ferraris 2007:196 [ref. 29155]. •Valid as Rhamdella exsudans (Jenyns 1842) -- (Burgess 1989:278 [ref. 12860], Miquelarena & Menni 1999:207 [ref. 24223], Bockmann & Guazzelli in Reis et al. 2003:422 [ref. 27061], Ferraris 2007:196 [ref. 29155]). •Genus uncertain -- (Bockmann & Miquelarena 2008:46 [ref. 29643]). Current status: Valid as Rhamdella exsudans (Jenyns 1842). Heptapteridae: Rhamdiinae. Distribution: Rio de Janeiro State, Brazil. Habitat: freshwater.