mentalis, Solea Günther [A.] 1862:475 [Catalogue of the fishes in the British Museum v. 4; ref. 1969] Rio Capin [= Capim], Pará State, Brazil. Syntypes: BMNH 1849.11.8.63-64 (2). •Valid as Hypoclinemus mentalis (Günther 1862) -- (Ramos in Reis et al. 2003:668 [ref. 27061], Ramos in Menezes et al. 2003:107 [ref. 27192], Barriga Salazar 2014:119 [ref. 35745], Sarmiento et al. 2014:189 [ref. 35004], DoNascimiento et al. 2017:96 [ref. 35633], Urbano-Bonilla et al. 2018:71 [ref. 35773], Silvano et al. 2020:401 [ref. 38134], Meza-Vargas et al. 2021:28 [ref. 39298], Bitencourt et al. 2022:4 [ref. 39848], Lasso et al. in Lasso & Morales-Betancourt 2022:296 [ref. 40783], Taphorn et al. 2022:10 [ref. 41297]). Current status: Valid as Hypoclinemus mentalis (Günther 1862). Achiridae. Distribution: Northern South America: Ecuador, Bolivia, Colombia, Guyana, Peru, Venezuela and Amazon (Brazil). Habitat: freshwater.