isognathus, Curimatus Eigenmann [C. H.] & Eigenmann [R. S.] 1889:428 [20] [Annals of the New York Academy of Sciences v. 4 (no. 12); ref. 1254] Lago Aleixo, Iça, on Rio Negro, Amazonas, Brazil. Lectotype: MCZ 20314. Paralectotypes: MCZ 20208 (1), 20214 (1), 20224-25 (1, 1). On p. 3 of separate. Lectotype selected by Vari 1989:23 [ref. 13548]. •Synonym of Psectrogaster rutiloides (Kner 1858) -- (Vari 1989:23 [ref. 13548], Vari in Reis et al. 2003:59 [ref. 27061]). Current status: Synonym of Psectrogaster rutiloides (Kner 1858). Curimatidae. Habitat: freshwater.