australis, Psectrogaster rhomboides Risso [F. J. J.] & Sánchez [E. L.] 1964:6, Pl. 1 [Notas del Museo de Ciencias Naturales del Chaco v. 1 (no. 2); ref. 21158] Resistencia, Argentina. Holotype: MCNCHACO 37/60. Paratypes: MCNCHACO 33-36/60 (4). •Synonym of Psectrogaster curviventris Eigenmann & Kennedy 1903 -- (Vari 1989:27 [ref. 13548], Vari in Reis et al. 2003:58 [ref. 27061], Mirande & Koerber 2015:12 [ref. 35117], Koerber et al. 2017:15 [ref. 35267]). Current status: Synonym of Psectrogaster curviventris Eigenmann & Kennedy 1903. Curimatidae. Habitat: freshwater.