septentrionalis, Retroculus Gosse [J.-P.] 1971:11, Pl. 5 [Bulletin de l'Institut Royal des Sciences Naturelles de Belgique v. 47 (no. 43); ref. 7679] Oyapock River at Saut-Alikoto, French Guiana. Holotype: IRSNB 515. Paratypes: IRSNB 516 (11), 517 (orig. 56, now 36), 518 (orig. 126, now 66), 519-521 (1, 2, 2); MZUSP [ex IRSNB 517] (20), MZUSP [ex IRSNB 518] (60). Type catalog: Walschaerts 1987:37 [ref. 20755]. •Valid as Retroculus septentrionalis Gosse 1971 -- (Keith et al. 2000:160 [ref. 24547], Kullander in Reis et al. 2003:641 [ref. 27061], Landim et al. 2015:378 [ref. 33860], Melo et al. 2016:135 [ref. 34701]). Current status: Valid as Retroculus septentrionalis Gosse 1971. Cichlidae: Cichlinae. Distribution: Oyapock River basin and Araguari River drainage: Brazil and French Guiana. Habitat: freshwater.