amoenus, Geophagus Cope [E. D.] 1872:250 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Río Ambyiacu, Peru. Holotype: ANSP (not found). Type catalog: Böhlke 1984:56 [ref. 13621] as no types at ANSP. •Nomen dubium -- (Kullander 1986:46 [ref. 12439]). •Species inquirenda in Apistogramma -- (Kullander in Reis et al. 2003:616 [ref. 27061]). •Valid as Apistogramma amoenus (Cope 1872) -- (Ovchynnyk 1967:42 [ref. 37559]). •Valid as Apistogramma amoena (Cope 1872) -- (Ortega & Vari 1986:20 [ref. 9708], Staeck 2003:16 [ref. 27488], Barriga Salazar 2014:118 [ref. 35745], Sarmiento et al. 2014:188 [ref. 35004], Meza-Vargas et al. 2021:27 [ref. 39298]). Current status: Valid as Apistogramma amoena (Cope 1872). Cichlidae: Cichlinae. Distribution: South America: Ecuador, Peru and Bolivia. Habitat: freshwater.