mulleri, Sternarchorhynchus Castelnau [F. L.] 1855:95 [Animaux nouveaux or rares v. 2; ref. 766] Essequibo River, Guyana [probably in error]. No types known. Unneeded new name for Sternarchorhynchus oxyrhynchus (Müller & Troschel 1849). For problems with the type locality, see de Santana & Vari 2010:333 [ref. 30785]. •Objective synonym of Sternarchorhynchus oxyrhynchus (Müller & Troschel 1849) -- (Mago-Leccia 1994:36 [ref. 21320], Albert in Reis et al. 2003:501 [ref. 27061], de Santana & Vari 2010:331 [ref. 30785], Ferraris et al. 2017:[14] [ref. 35236]). Current status: Synonym of Sternarchorhynchus oxyrhynchus (Müller & Troschel 1849). Apteronotidae: Apteronotinae. Habitat: freshwater.