latus, Tetragonopterus Jardine [W.] in Schomburgk 1841:241 [The Natural history of fishes of Guiana; ref. 18707] Rivers of Guyana. No types known. Myletes latus Muller & Troschel 1844:97 mentioned by Jégu in Reis et al. 2003:186 as described as a synonym of Tetragonopterus latus Jardin 1841 -- latus of Muller & Troschel is therefore a name in synonymy and not available; based on specimens mentioned, Jégu placed as a synonym of Myleus rhomboidalis (Cuvier 1818). •Synonym of Myleus rhomboidalis (Cuvier 1818) -- (Géry 1972:183 [ref. 1594]). •Species inquirenda in family Characidae, subfamily Serrasalminae -- (Jégu in Reis et al. 2003:193 [ref. 27061]). •Synonym of Prosomyleus rhomboidalis (Cuvier 1818) -- (Ota et al. 2024:419 [ref. 40817]). Current status: Synonym of Prosomyleus rhomboidalis (Cuvier 1818). Serrasalmidae: Myleinae. Habitat: freshwater.