anisurus, Heptapterus Mees [G. F.] 1987:451, Fig. 1 [Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen (Series C, Biological and Medical Sciences) v. 90 (no. 4); ref. 6619] Río Guarapiche near Maturin, Monagas, Venezuela. Holotype: RMNH 30499. Paratypes: RMNH 30500 (1). Type catalog: Ferraris 2007:188 [ref. 29155]. •Valid as Heptapterus anisurus Mees 1987 -- (Burgess 1989:276 [ref. 12860]). •Valid as Phenacorhamdia anisura (Mees 1987) -- (Britski 1993:46 [ref. 21110], Burgess & Finley 1996:167 [ref. 22901], Zarske 1998:30 [ref. 23981], Bockmann & Guazzelli in Reis et al. 2003:416 [ref. 27061], Ferraris 2007:188 [ref. 29155], DoNascimiento & Milani 2008:164 [ref. 29737], DoNascimiento 2016:532 [ref. 34727], DoNascimiento et al. 2017:91 [ref. 35633]). Current status: Valid as Phenacorhamdia anisura (Mees 1987). Heptapteridae: Heptapterinae. Distribution: Orinoco River basin, Venezuela and Colombia. Habitat: freshwater.