cupido, Geophagus Heckel [J. J.] 1840:399 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Rio Negro and Rio Guaporé, Mato Grosso, Brazil. Syntypes: NMW 23094 [or 23394] (1) Rio Guaporé., 23122 (1), 23414 (1). •Valid as Biotodoma cupido (Heckel 1840) -- (Gosse 1976:98 [ref. 7029], Ortega & Vari 1986:20 [ref. 9708], Kullander 1986:129 [ref. 12439], Lasso et al. 2001:101 [ref. 25928], Kullander in Reis et al. 2003:618 [ref. 27061], Sarmiento et al. 2014:188 [ref. 35004], DoNascimiento et al. 2017:98 [ref. 35633], Meza-Vargas et al. 2021:28 [ref. 39298]). Current status: Valid as Biotodoma cupido (Heckel 1840). Cichlidae: Cichlinae. Distribution: South America: Amazon River basin and Essequibo River basin (Bolivia, Brazil, Colombia, Guyana and Peru). Habitat: freshwater.