chaquensis, Epapterus Risso [F. J. J.] & Risso [E. N. P. de] 1962:5, Figs. 1-3 [Notas Biologicas de la Facultad de Ciencias Exactas, Fisicas y Naturales, Corrientes, Zoologia No. 3; ref. 6369] Near Resistencia, Chaco Province, Argentina. Holotype: Univ. Nac. del Noredeste 17/VII/961-1. Paratypes: Univ. Nac. del Noredeste 17/VII/961-2-5 (4). Type catalog: Ferraris 2007:74 [ref. 29155]. •Valid as Epapterus chaquensis Risso & Risso 1962 -- (Burgess 1989:241 [ref. 12860], Britski et al. 1999:113 [ref. 24147]). •Synonym of Epapterus dispilurus Cope 1878 -- (Vari & Ferraris 1998:992 [ref. 23503], Ferraris in Reis et al. 2003:475 [ref. 27061], Ferraris 2007:74 [ref. 29155], Mirande & Koerber 2015:30 [ref. 35117], Koerber et al. 2017:46 [ref. 35267]). Current status: Synonym of Epapterus dispilurus Cope 1878. Auchenipteridae: Auchenipterinae. Habitat: freshwater.