isonycterina, Heroina Kullander [S. O.] 1996:153, Figs. 3-6 [Ichthyological Exploration of Freshwaters v. 7 (no. 2); ref. 22574] Río Napo drainage, upper Río Tiputini upstream of bridge on road to Coca, 0°44.5'S, 76°53'W, Napo Province, Ecuador. Holotype: FMNH 105181. Paratypes: FMNH 96560-63 (3, 3, 4, 1); MCZ 49319 (1); MEPN uncat. (4, 2); NRM 31497-98 (1, 1), 32451-53 (2, 1, 1), 32676 (1, c&s); CAS-SU 50713 (5). •Valid as Heroina isonycterina Kullander 1996 -- (Kullander in Reis et al. 2003:636 [ref. 27061], Barriga Salazar 2014:118 [ref. 35745], Říčan et al. 2016:28 [ref. 34357], DoNascimiento et al. 2017:100 [ref. 35633], Meza-Vargas et al. 2021:28 [ref. 39298]). Current status: Valid as Heroina isonycterina Kullander 1996. Cichlidae: Cichlinae. Distribution: South America: Amazon River basin (Colombia, Ecuador and Peru). Habitat: freshwater.