ocellatus, Rivulus Hensel [R.] 1868:365 [Archiv für Naturgeschichte v. 34 (pt 1); ref. 14075] Rio de Janeiro, Brazil. Holotype (unique): ZMB 7448. Type catalog: Paepke & Seegers 1986:169 [ref. 19981]. Name suppressed in Opinion 1798 (Case 2722) where it is ruled that Rivulus marmoratus Poey 1880 takes precedence over Rivulus ocellatus when both are considered synonyms. •Synonym of Rivulus marmoratus Poey 1880 -- (Lazara 2001:279 [ref. 25711]). •Valid as Rivulus ocellatus Hensel 1868 -- (Huber 1991:65 [ref. 19721], Huber 1992:340 [ref. 20639], Keith et al. 2000:46 [ref. 24547], Costa in Reis et al. 2003:538 [ref. 27061], Radda 2004:21 [ref. 27638], DoNascimiento 2016:537 [ref. 34727]). •Synonym of Cryptolebias marmoratus (Poey 1880) -- (Costa 2004:115 [ref. 27763]). •Valid as Kryptolebias ocellatus (Hensel 1868) -- (Costa 2004:107 [ref. 28584], Costa 2006:7 [ref. 28624], Keith et al. 2006:137 [ref. 28851], Costa 2011:185 [ref. 31358], Berbel-Filho et al. 2016:[1] [ref. 34830], Costa 2016:187 [ref. 34932], Carvalho-Filho 2023:94 [ref. 40480]). Current status: Valid as Kryptolebias ocellatus (Hensel 1868). Rivulidae: Kryptolebiatinae. Distribution: South America: estuarine mangrove areas of Atlantic coast of eastern and south-eastern Brazil. Habitat: freshwater, brackish.