Species that contain: Rivulus and santensis [ 2 ] records

rachovii, Rivulus Ahl [E.] 1925:109 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1923; ref. 15525] Pará, Brazil. Lectotype: ZMB 31316. Paralectotypes: ZMB 21186 (1). Type catalog: Paepke & Seegers 1986:169 [ref. 19981]. Lectotype selected by Seegers 1984 [ref. 17455]. Types mentioned by Paepke 1995:94 [ref. 21847]. •Synonym of Rivulus santensis Köhler 1906 -- (Huber 1992:375 [ref. 20639], Lazara 2001:284 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061], Costa 2008:197 [ref. 29962]). •Possibly valid as Rivulus rachovii Ahl 1925 -- (Huber 2017:20 [ref. 35720]). •Synonym of Atlantirivulus santensis (Köhler 1906). Current status: Synonym of Atlantirivulus santensis (Köhler 1906). Rivulidae: Rivulinae. Habitat: freshwater.

santensis, Rivulus elegans var. Köhler [W.] 1906:408, Fig. [Blätter für Aquarien- und Terrarienkunde v. 17 (no. 41); ref. 19678] Western surroundings of Santos, near Pedro Taques, Estado de São Paulo, Brazil [Santos, Brazil]. Neotype: MNHN 1991-6856. Neotype designation by Huber 1992:396 [ref. 20639]. MNHN 1991-6857 (1) listed as a "Paraneotype" and many others. •Synonym of Rivulus elegans Steindachner 1880, but a valid subspecies as described -- (Costa 1991:582 [ref. 20033], Huber 1992:396 [ref. 20639]). •Valid as Rivulus santensis Köhler 1906 -- (Lazara 2001:283 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061], Costa 2004:105 [ref. 27824], Costa 2004:105 [ref. 27824], Costa 2006:139 [ref. 28875] in subgenus Cynodonichthys, Costa 2007:181 [ref. 29203], Costa 2007:128 [ref. 29225], Costa 2008:135 [ref. 29871], Costa 2008:197 [ref. 29962], Costa & Lanés 2009:94 [ref. 30256]). •Valid as Atlantirivulus santensis (Köhler 1906) -- (Costa 2011:244 [ref. 31655], Costa 2014:19 [ref. 33307], Volcan et al. 2024:98 [ref. 41345]). Current status: Valid as Atlantirivulus santensis (Köhler 1906). Rivulidae: Rivulinae. Distribution: South America: Atlantic coastal river basins, eastern Brazil. Habitat: freshwater.