labiatus, Sternarchogiton de Santana [C. D.] & Crampton [W. G. R.] 2007:397, Figs. 6-7 [Copeia 2007 (no. 2); ref. 29144] Toco Preto, Município de Tefé, 3°47.31'S, 64°59.91'W, Rio Tefé, Amazonas, Brazil. Holotype: MCP 37544. Paratypes: INPA 18296 (1); MCP 37543 (1), 37545 (1, c&s), 37546 (2); UF 147994 (1). Type catalog: Ferraris et al. 2017:[11] [ref. 35236]. •Valid as Sternarchogiton labiatus de Santana & Crampton 2007 -- (Cox Fernandes et al. 2009:206 [ref. 30178], de Santana & Vari 2010:161 [ref. 30740], Ferraris et al. 2017:[11] [ref. 35236], Bernt et al. 2018:474 [ref. 35797], Bernt et al. 2023:623 [ref. 40619]). Current status: Valid as Sternarchogiton labiatus de Santana & Crampton 2007. Apteronotidae: Apteronotinae. Distribution: South America: Amazon River basin (Brazil and Peru), and Orinoco River basin (Venezuela). Habitat: freshwater.