coecutiens, Silurus Lichtenstein [M. H. C.] 1819:61 [Zoologisches Magazin (Wiedemann) 1819, v. 1 (pt 3); ref. 17526] Rivers of Equatorial Brazil. Holotype: ZMB 3093 (no longer extant). Syntypes: (2) whereabouts unknown. Type catalog: Ferraris 2007:131 [ref. 29155]. Silurus caecutiens Günther 1864:199 [ref. 1974] is an unjustified emendation. Also appeared in Lichtenstein 1823:112 [ref. 17525]. •Valid as Cetopsis coecutiens (Lichtenstein 1819) [not Spix & Agassiz 1829] -- (Ovchynnyk 1967:35 [ref. 37559], Ortega & Vari 1986:15 [ref. 9708], Burgess 1989:292 [ref. 12860], de Pinna & Vari 1995:3 [ref. 21651], Oliveira et al. 2001:575 [ref. 25604], Vari & Ferraris in Reis et al. 2003:257 [ref. 27061], López et al. 2003:37 [ref. 27366] with authors as Spix & Agassiz 1829, Menni 2004:79 [ref. 28131], Vari et al. 2005:162 [ref. 28270], Aguilera & Mirande 2006:1 [ref. 28894], Proudlove 2006:268 [ref. 28992] with author as Spix & Agassiz, de Pinna et al. 2007:803 [ref. 29247], Ferraris 2007:131 [ref. 29155], Barriga Salazar 2014:110 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], DoNascimiento et al. 2017:84 [ref. 35633], Abrahão & de Pinna 2018:117 [ref. 35957], Silvano et al. 2020:225 [ref. 38135], Meza-Vargas et al. 2021:24 [ref. 39298], Koerber et al. 2022:54 [ref. 39235], Lasso et al. in Lasso & Morales-Betancourt 2022:144 [ref. 40783]). Current status: Valid as Cetopsis coecutiens (Lichtenstein 1819). Cetopsidae: Cetopsinae. Distribution: South America: Amazon, Tocantins and Orinoco River basins (Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela). Habitat: freshwater.