pirai, Cnesterodon Aguilera [G.], Mirande [J. M.] & Azpelicueta [M. de las M.] 2009:36, Figs. 1-2 [Zootaxa No. 2195; ref. 30366] Aristóbulo del Valle, Río Paraná basin, arroyo Almeida, tributary of arroyo Cuña Pirú, 27°00'24"S, 54°50'22"W, Misiones, Argentina. Holotype: CI-FML 3853. Paratypes: AI 223 (6); ANSP 187060 (4); CI-FML 3854 (4), 3855 (2, c&s), 3965 (8). •Valid as Cnesterodon pirai Aguilera, Mirande & Azpelicueta 2009 -- (Koerber 2011:7 [ref. 31122], Koerber 2014:12 [ref. 33621], Meyer 2015:49 [ref. 34698], Mirande & Koerber 2015:52 [ref. 35117], Huber 2019:55 [ref. 36941]). Current status: Valid as Cnesterodon pirai Aguilera, Mirande & Azpelicueta 2009. Poeciliidae: Poeciliinae. Distribution: Río Paraná basin, Misiones, Argentina. Habitat: freshwater.