bimaculata, Nannacara Eigenmann [C. H.] 1912:488, Pl. 66 (fig. 1) [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Erukin, Guyana. Holotype (unique): FMNH 53799 [ex CM 2304]. Type catalog: Henn 1928:96 [ref. 12305], Ibarra & Stewart 1987:59 [ref. 12367]. •Valid as Nannacara bimaculata Eigenmann 1912 -- (Kullander & Prada-Pedreros 1993:363 [ref. 21108], Kullander in Reis et al. 2003:640 [ref. 27061], Staeck 2003:173 [ref. 27488]). •Valid as Ivanacara bimaculata (Eigenmann 1912) -- (Römer & Hahn 2006:1191 [ref. 28965], Staeck 2017:253 [ref. 35639], Taphorn et al. 2022:33 [ref. 41297]). Current status: Valid as Ivanacara bimaculata (Eigenmann 1912). Cichlidae: Cichlinae. Distribution: South America: Potaro River and Essequibo River basins (Guyana) endemic. Habitat: freshwater.