carvalhoi, Tetragonopterus Melo [B. F.], Benine [R. C.], Mariguela [T. C.] & Oliveira [C.] 2011:50, Figs. 1, 2a [Neotropical Ichthyology v. 9 (no. 1); ref. 31233] Laranjal do Jari, Igarapé Iratapuru, rio Jari, Amazon basin, 00°33'30"S, 52°34'45"W, Amapá, Brazil. Holotype: MZUSP 102268. Paratypes: LMP [= DZSJRP] 5306 (7), 5376 (34, 4 c&s); MZUSP 106813 (15). •Valid as Tetragonopterus carvalhoi Melo, Benine, Mariguela & Oliveira 2011 -- (Silva & Benine 2011:50 [ref. 31347], Silva et al. 2013:1629 [ref. 32576], Araujo & Lucinda 2014:314 [ref. 33377], Melo et al. 2015:711 [ref. 35424], Silva et al. 2016:26 [ref. 34929]). Current status: Valid as Tetragonopterus carvalhoi Melo, Benine, Mariguela & Oliveira 2011. Characidae: Tetragonopterinae. Distribution: Rio Jari, Amapá, northern Brazil. Habitat: freshwater.