australe, Chaetobranchopsis Eigenmann [C. H.] & Ward [D. P.] in Eigenmann, McAtee & Ward 1907:144, Pl. 44 (fig. 1) [Annals of the Carnegie Museum v. 4 (no. 2) (art. 7); ref. 1261] Bahia Negra, Paraguay. Holotype (unique): CAS 66954 [ex IU 10157]. •Valid as Chaetobranchopsis australe Eigenmann & Ward 1907 -- (Britski et al. 1999:149 [ref. 24147], Keith et al. 2000:178 [ref. 24547], López et al. 2003:77 [ref. 27366]). •Valid as Chaetobranchopsis australis Eigenmann & Ward 1907 -- (Casciotta 1998:40 [ref. 27682], Kullander in Reis et al. 2003:620 [ref. 27061], Menni 2004:87 [ref. 28131], Sarmiento et al. 2014:189 [ref. 35004], Mirande & Koerber 2015:56 [ref. 35117], Koerber et al. 2017:76 [ref. 35267]). Current status: Valid as Chaetobranchopsis australis Eigenmann & Ward 1907. Cichlidae: Cichlinae. Distribution: Paraná River basin: Argentina, Bolivia, Brazil and Paraguay. Habitat: freshwater.