spilurus, Crenuchus Günther [A.] 1863:443 [Annals and Magazine of Natural History (Series 3) v. 12 (no. 72); ref. 1973] Essequibo River, Guyana. Holotype (unique): BMNH 1864.1.21.92. •Valid as Crenuchus spilurus Günther 1863 -- (Géry 1970:17 [ref. 34971], Ortega & Vari 1986:8 [ref. 9708], Taphorn 1992:176 [ref. 23654], Planquette et al. 1996:184 [ref. 22818], Buckup in Reis et al. 2003:91 [ref. 27061], Melo et al. 2016:132 [ref. 34701], DoNascimiento et al. 2017:34 [ref. 35633], Meza-Vargas et al. 2021:20 [ref. 39298], Ohara et al. 2022:19 [ref. 39267], Taphorn et al. 2022:21 [ref. 41297]). Current status: Valid as Crenuchus spilurus Günther 1863. Crenuchidae: Crenuchinae. Distribution: South America: Orinoco and Amazon River basin, and coastal rivers in the Guianas (Brazil, Colombia, French Guiana, Guyana, Peru, Suriname and Venezuela). Habitat: freshwater.