purpureus, Acestrorhamphus Messner [E.] 1962:1, Fig. [Comunicaciones Zoologicas del Museo de Historia Natural de Montevideo v. 7 (no. 95); ref. 6160] Río Olimar, near the mouth of A. de las Piedras, Uruguay. Holotype (unique): MHNM CI 79. Type catalog: Olazarri et al. 1970:3 [ref. 23527], Loureiro et al. 2016:412 [ref. 35150]. •Synonym of Oligosarcus jenynsii (Günther 1864) -- (Menezes 1987:24 [ref. 20060], Braga 1994:22 [ref. 27878], Menezes in Reis et al. 2003:151 [ref. 27061], Litz & Koerber 2014:15 [ref. 33622], Mirande & Koerber 2015:25 [ref. 35117]). Current status: Synonym of Oligosarcus jenynsii (Günther 1864). Characidae: Stethaprioninae. Habitat: freshwater.