mesensis, Sternarchorhynchus Campos-da-Paz [R.] 2000:531, Figs. 6, 10 [Copeia 2000 (no. 2); ref. 24452] Rio Tocantins (upper River Tocantins region), at Serra da Mesa dam, municípios Minaçu/Uruaçu, about 13°50'S, 48°19'W, Goiás, Brazil. Holotype: MNRJ 17591. Paratypes: MCP 21122 (1); MNRJ 11611 (4, c&s), 11612 (11, 1 c&s), 11613 (7); MZUSP 57597 (1). Plus non-type material. Type catalog: Ferraris et al. 2017:[14] [ref. 35236]. •Valid as Sternarchorhynchus mesensis Campos-da-Paz 2000 -- (Albert 2001:112 [ref. 25614] as mesaensis, Albert in Reis et al. 2003:501 [ref. 27061], de Santana & Crampton 2006:58 [ref. 28619], de Santana & Nogueira 2006:85 [ref. 28638], de Santana & Vari 2010:322 [ref. 30785], Ferraris et al. 2017:[14] [ref. 35236]). Current status: Valid as Sternarchorhynchus mesensis Campos-da-Paz 2000. Apteronotidae: Apteronotinae. Distribution: Upper Tocantins River basin, Brazil. Habitat: freshwater.