paraguayensis, Fundulus Eigenmann [C. H.] & Kennedy [C. H.] 1903:530 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 55; ref. 1260] Laguna near Arroyo Trementina, a tributary of Rio Aquido Canigi; Paraguay. Holotype (unique): CAS 42533 [ex IU 10064]. •Valid as Neofundulus paraguayensis (Eigenmann & Kennedy 1903) -- (Parenti 1981:489 [ref. 7066], Costa 1993:617 [ref. 21314], Costa 1998:78 [ref. 23792], Britski et al. 1999:140 [ref. 24147], Lazara 2001:215 [ref. 25711], Costa in Reis et al. 2003:532 [ref. 27061], López et al. 2003:70 [ref. 27366], Menni 2004:86 [ref. 28131], Calviño 2005:15 [ref. 28325], Nielsen & Brousseau 2013:114 [ref. 32795], Sarmiento et al. 2014:187 [ref. 35004], Costa 2015:23 [ref. 33783], Mirande & Koerber 2015:51 [ref. 35117], Calviño et al. 2016:10 [ref. 34699], Koerber et al. 2017:7 [ref. 35083], Koerber et al. 2017:71 [ref. 35267], Koerber et al. 2017:8 [ref. 35632], Dickens 2019:168 [ref. 37135] as cf. paraguayensis, Koerber et al. 2019:9 [ref. 36736], Drawert 2023:35 [ref. 40730]). Current status: Valid as Neofundulus paraguayensis (Eigenmann & Kennedy 1903). Rivulidae: Rivulinae. Distribution: South America: Paraguay River basin (Argentina, Brazil, Bolivia and Paraguay). Habitat: freshwater.