urophthalmus, Rivulus Günther [A.] 1866:327 [Catalogue of the fishes in the British Museum v. 6; ref. 1983] Belém, Pará, Brazil. Lectotype: BMNH 1851.12.26.16. Paralectotypes: (at least 3) BMNH 1851.12.26.17-18 (2). Lectotype selected by Huber 1991:67 [ref. 19721]. •Valid as Rivulus urophthalmus Günther 1866 -- (Ortega & Vari 1986:19 [ref. 9708], Huber 1991:67 [ref. 19721], Huber 1992: [ref. 20639], Lazara 2001:285 [ref. 25711], Costa in Reis et al. 2003:540 [ref. 27061], Vermeulen & Hrbek 2005:7 [ref. 28142], Costa 2006:139 [ref. 28875] in subgenus Cynodonichtyes, Costa & Vono 2009:7 [ref. 30258], Costa 2010:84 [ref. 30788], Barriga Salazar 2014:117 [ref. 35745] as cf. urophthalmus). •Valid as Anablepsoides urophthalmus (Günther 1866) -- (Costa 2011:243 [ref. 31655], Costa et al. 2013:292 [ref. 33108], Nielsen 2016:166 [ref. 34861], see DoNascimiento et al. 2017:[30] [ref. 35679], Meza-Vargas et al. 2021:27 [ref. 39298], Koerber et al. 2022:75 [ref. 39235]). Current status: Valid as Anablepsoides urophthalmus (Günther 1866). Rivulidae: Rivulinae. Distribution: South America: Amazon River basin (Brazil, ?Ecuador and Peru). Habitat: freshwater.