Species that contain: Hoplarchus and psittacus [ 3 ] records

cychla, Centrarchus Jardine [W.] in Schomburgk 1843:157, Pl. 11 [The natural history of fishes of Guiana.--Part II; ref. 3948] Rio Negro. No types known. •Synonym of Hoplarchus psittacus (Heckel 1840) -- (Kullander in Reis et al. 2003:637 [ref. 27061]). Current status: Synonym of Hoplarchus psittacus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.

pentacanthus, Hoplarchus Kaup [J. J.] 1860:129, Pl. 6 (fig. 1) [Archiv für Naturgeschichte v. 26 (pt. 1); ref. 2581] South America [not other data]. Holotype (unique): ZSM [old collection]. Type catalog: Neumann 2006:270 [ref. 28925]. •Synonym of Hoplarchus psittacus (Heckel 1840) -- (Kullander in Reis et al. 2003:637 [ref. 27061]). Current status: Synonym of Hoplarchus psittacus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.

psittacus, Heros Heckel [J. J.] 1840:369 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Río Negro north of Maribitanos, at foot of Cocui Mountains, Venezuela. Syntypes: ?NMW 17641-42 (1, 1). •Valid as Hoplarchus psittacus (Heckel 1840) -- (Lasso & Machado-Allison 2000:116 [ref. 27968], Kullander in Reis et al. 2003:637 [ref. 27061], DoNascimiento et al. 2017:100 [ref. 35633], Silvano et al. 2020:355 [ref. 38134]). Current status: Valid as Hoplarchus psittacus (Heckel 1840). Cichlidae: Cichlinae. Distribution: South America: Amazon River basin and Orinoco River basin (Brazil, Colombia and Venezuela). Habitat: freshwater.