tocantinsi, Tridentopsis LaMonte [F. R.] 1939:1 [American Museum Novitates No. 1024; ref. 17198] Rio Tocantins, Goiás State, northeastern Brazil. Holotype: AMNH 13967. Paratypes: AMNH 20926 (2). Type catalog: Ferraris 2007:426 [ref. 29155]. •Valid as Tridentopsis tocantinsi LaMonte 1939 -- (Burgess 1989:325 [ref. 12860], Azpelicueta 1990:987 [ref. 19207], de Pinna & Wosiacki in Reis et al. 2003:286 [ref. 27061], Ferraris 2007:426 [ref. 29155]). Current status: Valid as Tridentopsis tocantinsi LaMonte 1939. Trichomycteridae: Tridentinae. Distribution: Tocantins River basin, Brazil. Habitat: freshwater.