gurupyensis, Myleus Steindachner [F.] 1911:342 [Anzeiger der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftlichen Klasse v. 48 (no. 16) (for 28 June 1911); ref. 14816] Rio Gurupi at Chatão, Brazil. Syntypes: (2) NMW 10589 (1). •Valid as Myleus gurupyensis Steindachner 1911 -- (Ovchynnyk 1967:30 [ref. 37559]). •Synonym of Myleus asterias (Müller & Troschel 1844) -- (Jégu in Reis et al. 2003:185 [ref. 27061]). •Synonym of Myloplus asterias (Müller & Troschel 1844) -- (Ota et al. 2024:413 [ref. 40817]). Current status: Synonym of Myloplus asterias (Müller & Troschel 1844). Serrasalmidae: Myleinae. Habitat: freshwater.